FPUS55 KTFX 180437 ZFPTFX Zone Forecast Product for Central and Southwest Montana National Weather Service Great Falls MT 1037 PM MDT Sun May 17 2026 Spot temperatures and probabilities of measurable precipitation are for the rest of tonight, Monday, Monday night, and Tuesday. MTZ301-181000- East Glacier Park Region- Including the cities of East Glacier Park, Kiowa, Babb, Saint Mary, Marias Pass, and Logan Pass 1037 PM MDT Sun May 17 2026 .REST OF TONIGHT...Mostly cloudy with a 20 percent chance of snow late in the evening, then partly cloudy after midnight. Patchy fog after midnight. Lows 19 to 25. North winds up to 10 mph shifting to the west after midnight. .MONDAY...Not as cool. Mostly sunny. Patchy fog in the morning. Chance of rain showers, snow showers and slight chance of thunderstorms in the afternoon. Highs 38 to 48. West winds 5 to 10 mph. Chance of precipitation 50 percent. .MONDAY NIGHT...Partly cloudy. A 20 percent chance of rain and snow in the evening. Lows 27 to 33. Southwest winds 5 to 15 mph. Gusts up to 25 mph increasing to 35 mph after midnight. .TUESDAY...Breezy. Not as cool. Partly sunny. A 20 percent chance of rain and snow in the afternoon. Highs 43 to 55. West winds 10 to 25 mph with gusts to around 40 mph. .TUESDAY NIGHT...Partly cloudy. A 20 percent chance of rain and snow after midnight. Lows 32 to 38. Southwest winds 10 to 20 mph. Gusts up to 40 mph decreasing to 30 mph after midnight. .WEDNESDAY...Rain and snow likely in the morning, then rain and snow in the afternoon. Light snow accumulations. Highs 42 to 52. Chance of precipitation 80 percent. .WEDNESDAY NIGHT...Mostly cloudy with chance of rain and snow in the evening, then partly cloudy with slight chance of rain and snow after midnight. Lows 29 to 35. Chance of precipitation 50 percent. .THURSDAY...Not as cool. Partly sunny. A 20 percent chance of rain in the afternoon. Highs 48 to 58. .THURSDAY NIGHT...Mostly cloudy with a 40 percent chance of rain. Lows in the upper 30s. .FRIDAY...Partly sunny. Chance of rain and snow in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 50 to 60. Chance of precipitation 50 percent. .FRIDAY NIGHT AND SATURDAY...Partly cloudy. A 20 percent chance of rain. Lows 35 to 41. Highs 54 to 64. .SATURDAY NIGHT AND SUNDAY...Breezy. Partly cloudy. Lows 37 to 43. Highs 54 to 64. $$ MTZ307-181000- Southern Rocky Mountain Front- Including the city of Rogers Pass 1037 PM MDT Sun May 17 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... .REST OF TONIGHT...Mostly cloudy late in the evening then becoming partly cloudy. A 20 percent chance of snow late in the evening. Patchy fog after midnight. Near steady temperature in the mid 20s. North winds up to 10 mph. .MONDAY...Not as cool. Sunny in the morning, then partly sunny with chance of snow showers, rain showers and slight chance of thunderstorms in the afternoon. Highs 37 to 45. North winds up to 10 mph. Chance of precipitation 50 percent. .MONDAY NIGHT...Partly cloudy. A 20 percent chance of rain and snow in the evening. Lows 23 to 29. West winds up to 10 mph. Gusts up to 30 mph after midnight. .TUESDAY...Not as cool. Mostly sunny. A 20 percent chance of rain and snow in the afternoon. Highs 43 to 53. West winds 5 to 15 mph with gusts to around 35 mph. .TUESDAY NIGHT...Partly cloudy. Lows 29 to 35. West winds 5 to 15 mph with gusts to around 35 mph. .WEDNESDAY...Mostly sunny with slight chance of rain and snow in the morning, then mostly cloudy with rain showers, snow likely and slight chance of thunderstorms in the afternoon. Highs 43 to 55. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Mostly cloudy. Rain and snow likely in the evening, then chance of snow and slight chance of rain after midnight. Light snow accumulations. Lows 28 to 34. Chance of precipitation 70 percent. .THURSDAY...Mostly sunny. Highs 49 to 59. .THURSDAY NIGHT...Mostly cloudy with a 20 percent chance of rain. Lows 32 to 38. .FRIDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 50 to 60. Chance of precipitation 40 percent. .FRIDAY NIGHT...Partly cloudy. A 20 percent chance of rain in the evening. Lows 33 to 39. .SATURDAY AND SATURDAY NIGHT...Partly cloudy. Highs 54 to 66. Lows 36 to 42. .SUNDAY...Sunny. Highs 55 to 67. $$ MTZ302-181000- Northern High Plains- Including the cities of Browning, Heart Butte, and Dupuyer 1037 PM MDT Sun May 17 2026 .REST OF TONIGHT...Partly cloudy. Patchy fog after midnight. Lows in the mid 20s. Northwest winds up to 10 mph. .MONDAY...Not as cool. Mostly sunny. Patchy fog in the morning. A 20 percent chance of thunderstorms in the afternoon. Highs in the lower 50s. West winds 5 to 10 mph shifting to the south in the afternoon. .MONDAY NIGHT...Partly cloudy. A 20 percent chance of rain in the evening. Lows in the lower 30s. Southwest winds 5 to 15 mph. Gusts up to 30 mph after midnight. .TUESDAY...Breezy. Mostly sunny. A 20 percent chance of rain in the afternoon. Highs around 60. West winds 15 to 25 mph with gusts to around 40 mph. .TUESDAY NIGHT...Breezy. Partly cloudy. Lows in the upper 30s. West winds 10 to 25 mph decreasing to 10 to 15 mph after midnight. .WEDNESDAY...Rain likely in the morning, then rain in the afternoon. Highs in the mid 50s. Chance of rain 80 percent. .WEDNESDAY NIGHT...Mostly cloudy with chance of rain in the evening, then partly cloudy with slight chance of rain after midnight. Lows in the mid 30s. Chance of rain 50 percent. .THURSDAY...Partly sunny. Highs in the lower 60s. .THURSDAY NIGHT...Mostly cloudy with a 20 percent chance of rain. Lows around 40. .FRIDAY...Partly sunny. Chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Chance of precipitation 40 percent. .FRIDAY NIGHT...Partly cloudy. A 20 percent chance of rain in the evening. Lows in the lower 40s. .SATURDAY THROUGH SUNDAY...Breezy. Partly cloudy. Highs in the upper 60s. Lows in the lower 40s. $$ MTZ308-181000- Southern High Plains- Including the cities of Bynum, Choteau, and Pendroy 1037 PM MDT Sun May 17 2026 .REST OF TONIGHT...Mostly cloudy in the late evening and early morning then becoming partly cloudy. Patchy fog after midnight. Near steady temperature around 30. Northwest winds up to 10 mph. .MONDAY...Not as cool. Patchy fog in the morning. Sunny in the morning, then partly sunny with chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the lower 50s. North winds 5 to 10 mph shifting to the east in the afternoon. Chance of precipitation 50 percent. .MONDAY NIGHT...Partly cloudy. A 20 percent chance of rain in the evening. Lows in the lower 30s. Southwest winds 5 to 10 mph. Gusts up to 30 mph after midnight. .TUESDAY...Mostly sunny. A 20 percent chance of rain in the afternoon. Highs in the lower 60s. West winds 5 to 15 mph with gusts to around 35 mph. .TUESDAY NIGHT...Partly cloudy. Lows in the upper 30s. West winds 5 to 15 mph with gusts to around 30 mph. .WEDNESDAY...Partly sunny. Slight chance of rain in the morning, then rain showers likely and slight chance of thunderstorms in the afternoon. Highs in the upper 50s. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Mostly cloudy. Rain likely in the evening, then chance of rain after midnight. Lows in the mid 30s. Chance of rain 70 percent. .THURSDAY...Mostly sunny. Highs in the mid 60s. .THURSDAY NIGHT...Mostly cloudy with a 20 percent chance of rain.Lows in the lower 40s. .FRIDAY...Partly sunny. Chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of precipitation 40 percent. .FRIDAY NIGHT...Partly cloudy. A 20 percent chance of rain in the evening. Lows in the lower 40s. .SATURDAY THROUGH SUNDAY...Partly cloudy. Highs in the mid 70s. Lows in the mid 40s. $$ MTZ303-181000- Eastern Glacier, Western Toole, and Central Pondera- Including the cities of Cut Bank, Ethridge, and Santa Rita 1037 PM MDT Sun May 17 2026 .REST OF TONIGHT...Partly cloudy. Patchy fog after midnight. Lows in the mid 20s. Northwest winds up to 10 mph. .MONDAY...Not as cool. Mostly sunny. Patchy fog in the morning. A 20 percent chance of rain in the afternoon. Highs in the mid 50s. Northwest winds up to 5 mph shifting to the southeast in the afternoon. .MONDAY NIGHT...Partly cloudy. Lows in the lower 30s. Southwest winds 5 to 10 mph. .TUESDAY...Partly sunny. A 20 percent chance of rain in the afternoon. Highs in the lower 60s. West winds 5 to 20 mph with gusts to around 35 mph. .TUESDAY NIGHT...Partly cloudy. Lows in the upper 30s. West winds 10 to 20 mph. .WEDNESDAY...Mostly cloudy. Chance of rain in the morning, then rain likely in the afternoon. Highs in the upper 50s. Chance of rain 70 percent. .WEDNESDAY NIGHT...Mostly cloudy with a 50 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the mid 30s. .THURSDAY...Mostly sunny. Highs in the mid 60s. .THURSDAY NIGHT...Mostly cloudy with a 20 percent chance of rain. Lows around 40. .FRIDAY...Partly sunny. Chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of precipitation 40 percent. .FRIDAY NIGHT THROUGH SUNDAY...Partly cloudy. Lows in the lower 40s. Highs in the lower 70s. && TEMPERATURE / PRECIPITATION Cut Bank 24 54 31 63 / 10 20 10 20 $$ MTZ304-181000- Eastern Toole and Liberty- Including the cities of Devon, Shelby, Chester, Galata, Joplin, Lothair, and Whitlash 1037 PM MDT Sun May 17 2026 .REST OF TONIGHT...Mostly cloudy with a 20 percent chance of snow late in the evening, then partly cloudy after midnight. Patchy fog after midnight. Lows in the mid 20s. Northwest winds up to 10 mph. .MONDAY...Not as cool. Mostly sunny. Patchy fog in the morning. Highs in the lower 50s. North winds up to 10 mph shifting to the east in the afternoon. .MONDAY NIGHT...Partly cloudy. Lows 26 to 32. South winds 5 to 10 mph with gusts to around 30 mph. .TUESDAY...Mostly sunny in the morning, then mostly cloudy with a 20 percent chance of rain in the afternoon. Highs in the lower 60s. Southwest winds 5 to 15 mph. .TUESDAY NIGHT...Not as cool. Mostly cloudy in the evening then becoming partly cloudy. Lows around 40. West winds 5 to 15 mph. .WEDNESDAY AND WEDNESDAY NIGHT...Mostly cloudy. A 50 percent chance of rain. Highs 56 to 62. Lows in the mid 30s. .THURSDAY...Mostly sunny. Highs in the mid 60s. .THURSDAY NIGHT...Mostly cloudy. Slight chance of rain in the evening, then chance of rain after midnight. Lows in the lower 40s. Chance of rain 30 percent. .FRIDAY...Partly sunny. Slight chance of rain in the morning, then slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of precipitation 20 percent. .FRIDAY NIGHT THROUGH SUNDAY...Partly cloudy. Lows in the mid 40s. Highs in the mid 70s. $$ MTZ305-181000- Hill County- Including the city of Havre 1037 PM MDT Sun May 17 2026 .REST OF TONIGHT...Mostly cloudy. A 20 percent chance of rain late in the evening. Patchy fog early in the morning. Lows in the upper 20s. North winds 5 to 15 mph. .MONDAY...Mostly sunny. Patchy fog in the morning. Highs in the mid 50s. North winds 5 to 10 mph. .MONDAY NIGHT...Mostly clear. Lows in the upper 20s. Southeast winds 5 to 10 mph. .TUESDAY...Warmer. Mostly sunny. A 50 percent chance of rain in the afternoon. Highs in the mid 60s. Southwest winds 5 to 15 mph. .TUESDAY NIGHT...Not as cool. Mostly cloudy. Lows in the lower 40s. Southwest winds 5 to 10 mph. .WEDNESDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain in the afternoon. Highs in the lower 60s. Chance of rain 50 percent. .WEDNESDAY NIGHT...Mostly cloudy with chance of rain in the evening, then partly cloudy with slight chance of rain after midnight. Lows in the upper 30s. Chance of rain 40 percent. .THURSDAY...Mostly sunny. Highs in the upper 60s. .THURSDAY NIGHT...Mostly cloudy. Slight chance of rain in the evening, then chance of rain after midnight. Lows in the lower 40s. Chance of rain 30 percent. .FRIDAY...Partly sunny. Chance of rain in the morning, then slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of precipitation 30 percent. .FRIDAY NIGHT...Partly cloudy. A 20 percent chance of rain after midnight. Lows in the lower 40s. .SATURDAY THROUGH SUNDAY...Partly cloudy. Highs in the upper 70s. Lows in the mid 40s. && TEMPERATURE / PRECIPITATION Havre 27 54 26 66 / 20 10 0 50 $$ MTZ306-181000- Northern Blaine County- Including the cities of Chinook, Zurich, Harlem, Hogeland, and Fort Belknap 1037 PM MDT Sun May 17 2026 .REST OF TONIGHT...Colder. Mostly cloudy. A 20 percent chance of rain and snow late in the evening. Lows in the upper 20s. North winds 10 to 20 mph. .MONDAY...Mostly cloudy. Highs 46 to 52. North winds 10 to 15 mph. .MONDAY NIGHT...Mostly clear. Lows in the mid 20s. East winds 5 to 10 mph. .TUESDAY...Not as cool. Mostly sunny. Highs in the lower 60s. South winds 5 to 15 mph. .TUESDAY NIGHT...Not as cool. Mostly cloudy. Lows around 40. Southwest winds 5 to 15 mph. Gusts up to 30 mph in the evening. .WEDNESDAY...Partly sunny. A 50 percent chance of rain in the afternoon. Highs in the lower 60s. .WEDNESDAY NIGHT...Mostly cloudy. Slight chance of rain in the evening, then chance of rain after midnight. Lows in the upper 30s. Chance of rain 30 percent. .THURSDAY...Mostly sunny. Highs in the mid 60s. .THURSDAY NIGHT...Mostly cloudy. A 30 percent chance of rain after midnight. Lows in the lower 40s. .FRIDAY...Partly sunny. Chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of precipitation 40 percent. .FRIDAY NIGHT...Partly cloudy with a 20 percent chance of rain. Lows in the lower 40s. .SATURDAY THROUGH SUNDAY...Breezy. Partly cloudy. Highs in the mid 70s. Lows in the mid 40s. $$ MTZ309-181000- Eastern Pondera and Eastern Teton- Including the cities of Brady, Conrad, and Ledger 1037 PM MDT Sun May 17 2026 .REST OF TONIGHT...Partly cloudy then becoming mostly cloudy after midnight then becoming partly cloudy. Patchy fog after midnight. Lows in the mid 20s. Northwest winds up to 5 mph. .MONDAY...Not as cool. Mostly sunny. Patchy fog in the morning. Highs in the mid 50s. North winds up to 5 mph shifting to the east around 5 mph in the afternoon. .MONDAY NIGHT...Partly cloudy. Lows in the upper 20s. South winds 5 to 10 mph. .TUESDAY...Mostly sunny. A 20 percent chance of rain in the afternoon. Highs in the mid 60s. West winds 5 to 15 mph. .TUESDAY NIGHT...Not as cool. Partly cloudy. Lows in the upper 30s. West winds 5 to 15 mph. .WEDNESDAY...Partly sunny. Slight chance of rain in the morning, then rain likely in the afternoon. Highs around 60. Chance of rain 70 percent. .WEDNESDAY NIGHT...Mostly cloudy. Chance of rain in the evening, then slight chance of rain after midnight. Lows in the mid 30s. Chance of rain 50 percent. .THURSDAY...Mostly sunny. Highs in the upper 60s. .THURSDAY NIGHT...Mostly cloudy with a 20 percent chance of rain. Lows around 40. .FRIDAY...Partly sunny. Chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of precipitation 30 percent. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of rain in the evening, then partly cloudy after midnight. Lows around 40. .SATURDAY THROUGH SUNDAY...Partly cloudy. Highs in the upper 70s. Lows in the mid 40s. $$ MTZ310-181000- Western and Central Chouteau County- Including the cities of Floweree, Carter, and Fort Benton 1037 PM MDT Sun May 17 2026 .REST OF TONIGHT...Mostly cloudy. Slight chance of rain late in the evening, then slight chance of rain and snow after midnight. Patchy fog after midnight. Lows in the upper 20s. Northwest winds 5 to 10 mph with gusts to around 25 mph. Chance of precipitation 20 percent. .MONDAY...Not as cool. Mostly sunny. Patchy fog in the morning. Highs in the lower 50s. North winds 5 to 10 mph. Gusts up to 30 mph in the morning. .MONDAY NIGHT...Mostly clear. Lows in the upper 20s. Southeast winds 5 to 10 mph. .TUESDAY...Warmer. Sunny in the morning, then partly sunny with a 20 percent chance of rain in the afternoon. Highs in the mid 60s. Southwest winds 5 to 15 mph. .TUESDAY NIGHT...Not as cool. Mostly cloudy in the evening then becoming partly cloudy. Lows in the lower 40s. Southwest winds 5 to 15 mph. .WEDNESDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy with a 50 percent chance of rain. Lows in the upper 30s. .THURSDAY...Mostly sunny. Highs in the upper 60s. .THURSDAY NIGHT...Mostly cloudy. A 20 percent chance of rain after midnight. Lows in the lower 40s. .FRIDAY...Mostly sunny. Chance of rain in the morning, then slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of precipitation 40 percent. .FRIDAY NIGHT THROUGH SUNDAY...Partly cloudy. Lows in the mid 40s. Highs in the upper 70s. $$ MTZ311-181000- Bears Paw Mountains and Southern Blaine- Including the city of Rocky Boy 1037 PM MDT Sun May 17 2026 .REST OF TONIGHT...Mostly cloudy. A 20 percent chance of rain and snow late in the evening. Lows in the upper 20s. Northwest winds 5 to 15 mph with gusts to around 35 mph. .MONDAY...Mostly cloudy in the morning then becoming mostly sunny. Highs 46 to 52. North winds 5 to 15 mph. Gusts up to 30 mph in the morning. .MONDAY NIGHT...Mostly clear. Lows in the upper 20s. East winds 5 to 10 mph shifting to the southeast after midnight. .TUESDAY...Warmer. Mostly sunny. A 20 percent chance of rain in the afternoon. Highs 59 to 65. Southwest winds 5 to 15 mph. .TUESDAY NIGHT...Not as cool. Mostly cloudy. Lows in the lower 40s. Southwest winds up to 15 mph. .WEDNESDAY...Partly sunny. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 58 to 64. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy. Chance of rain in the evening, then slight chance of rain after midnight. Lows in the upper 30s. Chance of rain 50 percent. .THURSDAY...Mostly sunny. Highs 62 to 68. .THURSDAY NIGHT...Mostly cloudy. A 30 percent chance of rain after midnight. Lows in the mid 40s. .FRIDAY...Partly sunny. Chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 63 to 69. Chance of precipitation 40 percent. .FRIDAY NIGHT...Partly cloudy. A 20 percent chance ofrain after midnight. Lows in the mid 40s. .SATURDAY THROUGH SUNDAY...Partly cloudy. Highs 71 to 79. Lows in the upper 40s. $$ MTZ312-181000- Cascade County below 5000ft- Including the city of Great Falls 1037 PM MDT Sun May 17 2026 .REST OF TONIGHT...Mostly cloudy. Slight chance of rain and snow late in the evening. Slight chance of snow early in the morning. Patchy fog after midnight. Near steady temperature in the lower 30s. Northwest winds up to 10 mph. Chance of precipitation 20 percent. .MONDAY...Not as cool. Mostly sunny. Patchy fog in the morning. Highs 48 to 54. Northwest winds up to 10 mph shifting to the northeast in the afternoon. .MONDAY NIGHT...Mostly clear. Lows in the upper 20s. South winds 5 to 10 mph. .TUESDAY...Not as cool. Mostly sunny. A 20 percent chance of rain in the afternoon. Highs in the lower 60s. Southwest winds 5 to 15 mph. .TUESDAY NIGHT...Not as cool. Partly cloudy. Lows around 40. Southwest winds 5 to 10 mph. .WEDNESDAY...Partly sunny. Slight chance of rain in the morning, then rain showers likely and slight chance of thunderstorms in the afternoon. Highs around 60. Chance of precipitation 60 percent. .WEDNESDAY NIGHT...Mostly cloudy. Rain likely in the evening, then chance of rain after midnight. Lows in the upper 30s. Chance of rain 70 percent. .THURSDAY...Mostly sunny. Highs in the mid 60s. .THURSDAY NIGHT...Mostly cloudy with a 20 percent chance of rain. Lows in the lower 40s. .FRIDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of precipitation 40 percent. .FRIDAY NIGHT...Partly cloudy. A 20 percent chance of rain in the evening. Lows in the lower 40s. .SATURDAY THROUGH SUNDAY...Partly cloudy. Highs in the mid 70s. Lows in the upper 40s. && TEMPERATURE / PRECIPITATION Great Falls Arpt 28 52 29 63 / 20 10 0 30 $$ MTZ313-181000- Judith Basin County and Judith Gap- Including the cities of Raynesford, Geyser, Stanford, Windham, Benchland, Hobson, and Moccasin 1037 PM MDT Sun May 17 2026 .REST OF TONIGHT...Mostly cloudy. Slight chance of rain and snow late in the evening, then slight chance of snow after midnight. Near steady temperature in the lower 30s. Northwest winds 10 to 15 mph with gusts to around 35 mph. Chance of precipitation 20 percent. .MONDAY...Mostly cloudy with a 20 percent chance of snow in the morning, then mostly sunny in the afternoon. Highs in the mid 40s. Northwest winds 10 to 15 mph with gusts to around 35 mph. .MONDAY NIGHT...Mostly clear. Lows in the mid 20s. East winds 5 to 10 mph shifting to the southwest after midnight. .TUESDAY...Not as cool. Sunny in the morning, then partly sunny with a 20 percent chance of rain in the afternoon. Highs in the upper 50s. West winds 5 to 10 mph. .TUESDAY NIGHT...Not as cool. Partly cloudy. Lows in the upper 30s. Southwest winds up to 15 mph. .WEDNESDAY AND WEDNESDAY NIGHT...Mostly cloudy. Rain showers likely and slight chance of thunderstorms. Highs in the upper 50s. Lows in the mid 30s. Chance of precipitation 70 percent. .THURSDAY...Mostly sunny with a 20 percent chance of rain. Highs in the lower 60s. .THURSDAY NIGHT...Mostly cloudy with a 20 percent chance of rain. Lows in the lower 40s. .FRIDAY...Partly sunny. Slight chance of rain in the morning, then chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of precipitation 50 percent. .FRIDAY NIGHT...Partly cloudy. A 20 percent chance of rain in the evening. Lows in the lower 40s. .SATURDAY AND SATURDAY NIGHT...Partly cloudy. Highs in the lower 70s. Lows in the mid 40s. .SUNDAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs in the mid70s. $$ MTZ314-181000- Fergus County below 4500ft- Including the cities of Hilger and Lewistown 1037 PM MDT Sun May 17 2026 .REST OF TONIGHT...Mostly cloudy. Slight chance of rain and snow late in the evening, then slight chance of snow after midnight. Near steady temperature in the mid 30s. Northwest winds 10 to 20 mph with gusts to around 35 mph. Chance of precipitation 20 percent. .MONDAY...Mostly cloudy. A 20 percent chance of snow in the morning. Highs 45 to 51. Northwest winds 5 to 15 mph. Gusts up to 35 mph in the morning. .MONDAY NIGHT...Mostly clear. Lows in the mid 20s. East winds up to 10 mph shifting to the south after midnight. .TUESDAY...Not as cool. Mostly sunny. A 20 percent chance of rain in the afternoon. Highs in the lower 60s. Southwest winds up to 10 mph. .TUESDAY NIGHT...Not as cool. Mostly cloudy in the evening then becoming partly cloudy. Lows around 40. Southwest winds 5 to 10 mph. .WEDNESDAY...Partly sunny. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 60 to 66. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy. Rain likely in the evening, then chance of rain after midnight. Lows in the upper 30s. Chance of rain 70 percent. .THURSDAY...Mostly sunny. Highs in the mid 60s. .THURSDAY NIGHT...Mostly cloudy. A 20 percent chance of rain after midnight. Lows in the lower 40s. .FRIDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of precipitation 40 percent. .FRIDAY NIGHT AND SATURDAY...Partly cloudy. Lows in the mid 40s. Highs in the mid 70s. .SATURDAY NIGHT...Partly cloudy. Lows in the upper 40s. .SUNDAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs in the upper 70s. && TEMPERATURE / PRECIPITATION Lewistown 27 46 23 59 / 40 40 0 30 $$ MTZ315-181000- Upper Blackfoot and MacDonald Pass- Including the cities of Marysville, Lincoln, Flesher Pass, and MacDonald Pass 1037 PM MDT Sun May 17 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... .REST OF TONIGHT...Partly cloudy with a 20 percent chance of snow. Patchy fog after midnight. Near steady temperature in the upper 20s. North winds up to 5 mph. Gusts up to 20 mph late in the evening. .MONDAY...Not as cool. Mostly sunny. A 50 percent chance of snow and rain in the afternoon. Highs 41 to 49. North winds up to 10 mph. .MONDAY NIGHT...Partly cloudy. Lows in the mid 20s. West winds up to 10 mph. .TUESDAY...Not as cool. Mostly sunny. A 20 percent chance of rain in the afternoon. Highs 49 to 57. West winds 5 to 15 mph. .TUESDAY NIGHT...Partly cloudy. Lows in the mid 30s. West winds up to 15 mph. Gusts up to 30 mph in the evening. .WEDNESDAY...Mostly sunny. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 49 to 59. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy. Rain showers, snow likely and slight chance of thunderstorms in the evening, then chance of rain and snow after midnight. Lows in the mid 30s. Chance of precipitation 70 percent. .THURSDAY...Mostly sunny. Highs 54 to 62. .THURSDAY NIGHT...Mostly cloudy. Lows in the upper 30s. .FRIDAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs 57 to 65. .FRIDAY NIGHT THROUGH SUNDAY...Partly cloudy. Lows in the lower 40s. Highs 63 to 71. $$ MTZ316-181000- Gates of the Mountains- Including the cities of Canyon Creek, Wolf Creek, and Craig 1037 PM MDT Sun May 17 2026 .REST OF TONIGHT...Mostly cloudy. A 20 percent chance of snow after midnight. Patchy fog after midnight. Near steady temperature in the lower 30s. Northwest winds up to 10 mph. .MONDAY...Not as cool. Mostly sunny. Patchy fog in the morning. Highs 47 to 53. North winds up to 10 mph. .MONDAY NIGHT...Mostly clear. Lows in the upper 20s. Southwest winds 5 to 10 mph. Gusts up to 25 mph after midnight. .TUESDAY...Not as cool. Mostly sunny. Slight chance of rain and snow in the morning, then slight chance of rain in the afternoon. Highs 56 to 62. Southwest winds 5 to 15 mph. Chance of precipitation 20 percent. .TUESDAY NIGHT...Partly cloudy. Lows in the upper 30s. Southwest winds up to 15 mph. .WEDNESDAY...Mostly sunny in the morning, then mostly cloudy with rain showers likely and slight chance of thunderstorms in the afternoon. Highs 55 to 63. Chance of precipitation 60 percent. .WEDNESDAY NIGHT...Mostly cloudy. Rain likely in the evening, then chance of rain and snow after midnight. Lows in the upper 30s. Chance of precipitation 70 percent. .THURSDAY...Mostly sunny. Highs 59 to 67. .THURSDAY NIGHT...Mostly cloudy. Lows in the lower 40s. .FRIDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 61 to 69. Chance of precipitation 30 percent. .FRIDAY NIGHT...Partly cloudy. A 20 percent chance of rain in the evening. Lows in the lower 40s. .SATURDAY THROUGH SUNDAY...Partly cloudy. Highs 68 to 77. Lows in the mid 40s. $$ MTZ317-181000- Little Belt and Highwood Mountains- Including the cities of Monarch, Neihart, and Kings Hill Pass 1037 PM MDT Sun May 17 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... .REST OF TONIGHT...Mostly cloudy. Slight chance of snow in the late evening and early morning, then chance of snow early in the morning. Patchy fog after midnight. Near steady temperature in the mid 20s. Northwest winds 5 to 15 mph with gusts to around 40 mph. Chance of snow 50 percent. .MONDAY...Mostly cloudy with a 20 percent chance of snow in the morning, then mostly sunny in the afternoon. Highs 36 to 44. North winds 5 to 15 mph. Gusts up to 45 mph decreasing to 30 mph in the afternoon. .MONDAY NIGHT...Mostly clear. Lows 20 to 28. East winds 5 to 10 mph shifting to the southwest after midnight. Gusts up to 25 mph. .TUESDAY...Not as cool. Mostly sunny. Slight chance of snow in the morning, then slight chance of rain and snow in the afternoon. Highs 48 to 56. West winds 5 to 15 mph. Chance of precipitation 20 percent. .TUESDAY NIGHT...Partly cloudy. Lows 31 to 39. Southwest winds 5 to 10 mph with gusts to around 25 mph. .WEDNESDAY...Mostly sunny in the morning, then mostly cloudy with rain showers likely and slight chance of thunderstorms in the afternoon. Highs 48 to 56. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Mostly cloudy. Rain showers, snow likely and slight chance of thunderstorms in the evening, then chance of rain and snow after midnight. Light snow accumulations. Lows 30 to 36. Chance of precipitation 70 percent. .THURSDAY...Partly sunny. Slight chance of rain and snow in the morning, then slight chance of rain in the afternoon. Highs 53 to 59. Chance of precipitation 20 percent. .THURSDAY NIGHT...Mostly cloudy. Chance of rain in the evening, then slight chance of rain after midnight. Lows 36 to 42. Chance of rain 30 percent. .FRIDAY...Partly sunny. Chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 55 to 61. Chance of precipitation 50 percent. .FRIDAY NIGHT...Partly cloudy. A 20 percent chance of rain in the evening. Lows 36 to 42. .SATURDAY AND SATURDAY NIGHT...Partly cloudy. Highs 62 to 70. Lows 39 to 47. .SUNDAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs 64 to 70. $$ MTZ318-181000- Snowy and Judith Mountains- 1037 PM MDT Sun May 17 2026 .REST OF TONIGHT...Breezy. Cloudy with a 50 percent chance of snow. Near steady temperature in the upper 20s. Northwest winds 10 to 25 mph with gusts to around 45 mph. .MONDAY...Mostly cloudy. Chance of snow in the morning, then slight chance of snow in the afternoon. Highs 35 to 43. Northwest winds 10 to 20 mph. Gusts up to 45 mph in the morning. Chance of snow 50 percent. .MONDAY NIGHT...Mostly clear. Lows in the lower 20s. North winds up to 10 mph shifting to the south after midnight. Gusts up to 25 mph. .TUESDAY...Not as cool. Sunny in the morning, then partly sunny with a 50 percent chance of rain in the afternoon. Highs 49 to 57. Southwest winds 5 to 10 mph with gusts to around 25 mph. .TUESDAY NIGHT...Not as cool. Mostly cloudy in the evening then becoming partly cloudy. Lows in the mid 30s. Southwest winds up to 10 mph with gusts to around 25 mph. .WEDNESDAY...Partly sunny. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 50 to 58. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Rain showers likely and slight chance of thunderstorms in the evening, then rain and snow likely after midnight. Light snow accumulations. Lows in the mid 30s. Chance of precipitation 70 percent. .THURSDAY...Mostly sunny with a 20 percent chance of rain. Highs 54 to 60. .THURSDAY NIGHT...Mostly cloudy. Slight chance of rain in the evening, then chance of rain after midnight. Lows in the upper 30s. Chance of rain 30 percent. .FRIDAY...Partly sunny. Slight chance of rain in the morning, then chance of thunderstorms in the afternoon. Highs 56 to 62. Chance of precipitation 40 percent. .FRIDAY NIGHT...Partly cloudy. A 20 percent chance of rain in the evening. Lows around 40. .SATURDAY AND SATURDAY NIGHT...Partly cloudy. Highs 64 to 70. Lows in the mid 40s. .SUNDAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs 67 to 73. $$ MTZ319-181000- Helena Valley- Including the city of Helena 1037 PM MDT Sun May 17 2026 .REST OF TONIGHT...Partly cloudy. Patchy fog early in the morning. Lows in the upper 20s. Northwest winds up to 10 mph. .MONDAY...Mostly sunny. Patchy fog in the morning. Highs in the mid 50s. North winds 5 to 10 mph. .MONDAY NIGHT...Mostly clear. Lows in the upper 20s. Northwest winds 5 to 10 mph shifting to the south after midnight. .TUESDAY...Mostly sunny. A 20 percent chance of rain in the afternoon. Highs in the lower 60s. South winds 5 to 10 mph shifting to the west in the afternoon. .TUESDAY NIGHT...Partly cloudy. Lows in the upper 30s. Southwest winds up to 10 mph. .WEDNESDAY...Partly sunny. A 30 percent chance of rain in the afternoon. Highs in the mid 60s. .WEDNESDAY NIGHT...Mostly cloudy. Rain likely in the evening, then chance of rain after midnight. Lows in the mid 30s. Chance of rain 70 percent. .THURSDAY...Mostly sunny. Highs in the upper 60s. .THURSDAY NIGHT...Mostly cloudy. Lows around 40. .FRIDAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs around 70. .FRIDAY NIGHT THROUGH SUNDAY...Partly cloudy. Lows in the lower 40s. Highs in the upper 70s. && TEMPERATURE / PRECIPITATION Helena 31 55 29 62 / 10 10 10 20 $$ MTZ320-181000- Big Belt, Bridger and Castle Mountains- Including the cities of Trident, Maudlow, Battle Ridge Pass, Bozeman Pass, and Deep Creek Pass 1037 PM MDT Sun May 17 2026 .REST OF TONIGHT...Mostly cloudy. A 20 percent chance of snow in the late evening and early morning. Near steady temperature in the upper 20s. North winds 5 to 15 mph with gusts to around 35 mph. .MONDAY...Partly sunny with a 20 percent chance of snow. Highs 36 to 46. North winds 5 to 15 mph. Gusts up to 40 mph decreasing to 30 mph in the afternoon. .MONDAY NIGHT...Mostly clear. Lows 21 to 27. Northeast winds up to 10 mph shifting to the south after midnight. Gusts up to 25 mph. .TUESDAY...Not as cool. Sunny in the morning, then partly sunny with a 20 percent chance of rain in the afternoon. Highs 48 to 56. West winds 5 to 15 mph with gusts to around 30 mph. .TUESDAY NIGHT...Partly cloudy. Lows in the mid 30s. Southwest winds up to 10 mph with gusts to around 25 mph. .WEDNESDAY...Mostly sunny. A 50 percent chance of rain in the afternoon. Highs 49 to 59. .WEDNESDAY NIGHT...Mostly cloudy. Rain showers likely and slight chance of thunderstorms in the evening, then chance of rain and snow after midnight. Light snow accumulations. Lows in the mid 30s. Chance of precipitation 70 percent. .THURSDAY...Mostly sunny. Highs 53 to 61. .THURSDAY NIGHT...Mostly cloudy with a 20 percent chance of rain. Lows in the upper 30s. .FRIDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 56 to 64. Chance of precipitation 40 percent. .FRIDAY NIGHT...Partly cloudy. A 20 percent chance of rain in the evening. Lows in the upper 30s. .SATURDAY THROUGH SUNDAY...Partly cloudy. Highs 61 to 74. Lows in the lower 40s. $$ MTZ321-181000- Meagher County Valleys- Including the cities of Martinsdale, Checkerboard, Ringling, and White Sulphur Springs 1037 PM MDT Sun May 17 2026 .REST OF TONIGHT...Mostly cloudy. Near steady temperature in the upper 20s. Northwest winds 5 to 15 mph with gusts to around 30 mph. .MONDAY...Partly sunny. Highs in the mid 40s. North winds 10 to 15 mph with gusts to around 30 mph. .MONDAY NIGHT...Mostly clear. Lows in the lower 20s. Northeast winds up to 10 mph shifting to the south after midnight. .TUESDAY...Not as cool. Mostly sunny. A 20 percent chance of rain in the afternoon. Highs in the mid 50s. West winds 5 to 15 mph. .TUESDAY NIGHT...Not as cold. Partly cloudy. Lows in the mid 30s. West winds up to 10 mph. Gusts up to 25 mph in the evening. .WEDNESDAY...Mostly sunny. A 50 percent chance of rain in the afternoon. Highs in the upper 50s. .WEDNESDAY NIGHT...Mostly cloudy. Rain showers likely and slight chance of thunderstorms in the evening, then chance of rain and snow after midnight. Lows in the mid 30s. Chance of precipitation 70 percent. .THURSDAY...Mostly sunny. Highs around 60. .THURSDAY NIGHT...Mostly cloudy. Slight chance of rain in the evening, then chance of rain after midnight. Lows in the upper 30s. Chance of rain 30 percent. .FRIDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Chance of precipitation 40 percent. .FRIDAY NIGHT...Partly cloudy. A 20 percent chance of rain in the evening. Lows in the upper 30s. .SATURDAY THROUGH SUNDAY...Partly cloudy. Highs in the lower 70s. Lows in the lower 40s. $$ MTZ322-181000- Elkhorn and Boulder Mountains- Including the cities of Montana City, Clancy, Boulder, Corbin, Wickes, Elk Park Pass, and Homestake Pass 1037 PM MDT Sun May 17 2026 .REST OF TONIGHT...Mostly cloudy with a 20 percent chance of snow. Patchy fog early in the morning. Near steady temperature in the mid 20s. North winds up to 10 mph. Gusts up to 45 mph decreasing to 35 mph after midnight. .MONDAY...Not as cool. Mostly sunny. Highs 38 to 48. North winds 5 to 15 mph. Gusts up to 40 mph decreasing to 30 mph in the afternoon. .MONDAY NIGHT...Mostly clear. Lows 21 to 27. Northwest winds up to 10 mph shifting to the west after midnight. Gusts up to 25 mph. .TUESDAY...Not as cool. Mostly sunny. A 20 percent chance of rain and snow in the afternoon. Highs 47 to 57. West winds up to 10 mph. .TUESDAY NIGHT...Partly cloudy. Lows 28 to 36. West winds up to 10 mph. .WEDNESDAY...Mostlysunny. A 30 percent chance of rain and snow in the afternoon. Highs 49 to 59. .WEDNESDAY NIGHT...Mostly cloudy. Rain showers likely and slight chance of thunderstorms in the evening, then chance of rain and snow after midnight. Lows 30 to 36. Chance of precipitation 70 percent. .THURSDAY...Mostly sunny. Highs 54 to 62. .THURSDAY NIGHT...Mostly cloudy. Lows 34 to 40. .FRIDAY...Mostly sunny. Slight chance of rain in the morning, then slight chance of thunderstorms in the afternoon. Highs 56 to 66. Chance of precipitation 20 percent. .FRIDAY NIGHT THROUGH SUNDAY...Partly cloudy. Lows 35 to 44. Highs 62 to 74. $$ MTZ323-181000- Canyon Ferry Area- Including the cities of Toston, Townsend, and Winston 1037 PM MDT Sun May 17 2026 .REST OF TONIGHT...Partly cloudy. Lows around 30. Northwest winds 5 to 15 mph. Gusts up to 40 mph decreasing to 30 mph after midnight. .MONDAY...Mostly sunny. Highs around 50. North winds 5 to 15 mph with gusts to around 30 mph. .MONDAY NIGHT...Mostly clear. Lows in the upper 20s. North winds 5 to 10 mph shifting to the south after midnight. .TUESDAY...Mostly sunny. A 20 percent chance of rain in the afternoon. Highs around 60. South winds up to 10 mph shifting to the west in the afternoon. .TUESDAY NIGHT...Partly cloudy. Lows 34 to 40. Northwest winds 5 to 10 mph shifting to the southwest after midnight. .WEDNESDAY...Mostly sunny. A 20 percent chance of rain in the afternoon. Highs in the lower 60s. .WEDNESDAY NIGHT...Mostly cloudy. Rain showers likely and slight chance of thunderstorms in the evening, then chance of rain after midnight. Lows in the upper 30s. Chance of precipitation 70 percent. .THURSDAY...Mostly sunny. Highs in the mid 60s. .THURSDAY NIGHT...Mostly cloudy. Lows in the lower 40s. .FRIDAY...Mostly sunny. Slight chance of rain in the morning, then slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of precipitation 20 percent. .FRIDAY NIGHT...Partly cloudy. A 20 percent chance of rain in the evening. Lows in the lower 40s. .SATURDAY THROUGH SUNDAY...Partly cloudy. Highs in the mid 70s. Lows in the mid 40s. $$ MTZ324-181000- Missouri Headwaters- Including the cities of Harrison, Three Forks, Willow Creek, Pony, and Whitehall 1037 PM MDT Sun May 17 2026 .REST OF TONIGHT...Partly cloudy. Lows in the upper 20s. Northwest winds up to 15 mph with gusts to around 30 mph. .MONDAY...Mostly sunny. Highs 47 to 53. North winds 5 to 15 mph. .MONDAY NIGHT...Mostly clear. Lows in the mid 20s. North winds up to 10 mph shifting to the southwest after midnight. .TUESDAY...Mostly sunny. A 20 percent chance of rain in the afternoon. Highs around 60. West winds up to 10 mph. .TUESDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows in the mid 30s. West winds up to 10 mph. .WEDNESDAY...Mostly sunny. A 20 percent chance of rain in the afternoon. Highs in the lower 60s. .WEDNESDAY NIGHT...Rain showers likely and slight chance of thunderstorms in the evening, then rain likely after midnight. Lows in the upper 30s. Chance of precipitation 70 percent. .THURSDAY...Mostly sunny. Highs in the mid 60s. .THURSDAY NIGHT...Mostly cloudy with a 20 percent chance of rain. Lows around 40. .FRIDAY...Mostly sunny. Slight chance of rain in the morning, then slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of precipitation 20 percent. .FRIDAY NIGHT THROUGH SATURDAY NIGHT...Partly cloudy. Lows in the lower 40s. Highs in the mid 70s. .SUNDAY...Sunny. Highs in the upper 70s. $$ MTZ325-181000- Madison River Valley- Including the cities of Cameron, Ennis, Jeffers, McAllister, and Norris 1037 PM MDT Sun May 17 2026 .REST OF TONIGHT...Mostly cloudy. A 20 percent chance of snow after midnight. Lows in the mid 20s. North winds 10 to 20 mph with gusts to around 40 mph. .MONDAY...Breezy. Mostly sunny. A 20 percent chance of snow in the morning. Highs in the mid 40s. North winds 10 to 25 mph with gusts to around 40 mph. .MONDAY NIGHT...Mostly clear. Lows 20 to 26. North winds 5 to 10 mph with gusts to around 30 mph shifting to the south after midnight. .TUESDAY...Not as cool. Sunny in the morning, then partly sunny with a 20 percent chance of rain in the afternoon. Highs in the upper 50s. Southwest winds 5 to 10 mph. .TUESDAY NIGHT...Not as cold. Mostly cloudy in the evening then becoming partly cloudy. Lows in the mid 30s. South winds up to 10 mph. .WEDNESDAY...Mostly sunny. A 20 percent chance of rain in the afternoon. Highs in the lower 60s. .WEDNESDAY NIGHT...Rain showers likely and slight chance of thunderstorms in the evening, then rain likely after midnight. Lows in the mid 30s. Chance of precipitation 70 percent. .THURSDAY...Mostly sunny. Highs in the mid 60s. .THURSDAY NIGHT...Mostly cloudy with a 20 percent chance of rain. Lows in the upper 30s. .FRIDAY...Mostly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of precipitation 30 percent. .FRIDAY NIGHT AND SATURDAY...Partly cloudy. Lows around 40. Highs in the mid 70s. .SATURDAY NIGHT AND SUNDAY...Partly cloudy. Lows in the mid 40s. Highs in the upper 70s. $$ MTZ326-181000- Gallatin Valley- Including the cities of Bozeman and Gallatin Gateway 1037 PM MDT Sun May 17 2026 .REST OF TONIGHT...Mostly cloudy. A 20 percent chance of snow after midnight. Patchy fog early in the morning. Lows in the upper 20s. Northwest winds 5 to 10 mph. Gusts up to 30 mph late in the evening. .MONDAY...Partly sunny. A 20 percent chance of snow in the morning. Highs in the upper 40s. Northwest winds 5 to 10 mph with gusts to around 25 mph. .MONDAY NIGHT...Mostly clear. Lows in the mid 20s. East winds 5 to 10 mph shifting to the southeast after midnight. .TUESDAY...Sunny in the morning then becoming partly sunny. Highs in the upper 50s. Southwest winds up to 5 mph shifting to the west in the afternoon. .TUESDAY NIGHT...Not as cool. Partly cloudy. Lows in the mid 30s. West winds up to 10 mph shifting to the south after midnight. .WEDNESDAY...Mostly sunny. A 20 percent chance of rain in the afternoon. Highs in the lower 60s. .WEDNESDAY NIGHT...Rain showers likely and slight chance of thunderstorms in the evening, then rain likely after midnight. Lows in the mid 30s. Chance of precipitation 70 percent. .THURSDAY...Mostly sunny. Highs in the mid 60s. .THURSDAY NIGHT...Mostly cloudy with a 20 percent chance of rain. Lows in the upper 30s. .FRIDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of precipitation 30 percent. .FRIDAY NIGHT THROUGH SATURDAY NIGHT...Partly cloudy. Lows in the lower 40s. Highs in the mid 70s. .SUNDAY...Sunny. Highs in the upper 70s. && TEMPERATURE / PRECIPITATION Bozeman Airport 25 51 22 60 / 10 10 0 10 Bozeman MSU 27 46 24 58 / 20 20 10 10 $$ MTZ330-181000- Gallatin and Madison County Mountains and Centennial Mountains- Including the cities of Big Sky, West Yellowstone, Targhee Pass, and Raynolds Pass 1037 PM MDT Sun May 17 2026 .REST OF TONIGHT...Mostly cloudy. Slight chance of snow late in the evening, then chance of snow after midnight. Lows 17 to 25. North winds 10 to 20 mph. Gusts up to 45 mph increasing to 60 mph after midnight. Chance of snow 40 percent. .MONDAY...Breezy. Partly sunny with a 20 percent chance of snow. Highs 30 to 42. North winds 10 to 25 mph. Gusts up to60 mph decreasing to 40 mph in the afternoon. .MONDAY NIGHT...Mostly clear. Lows 16 to 22. North winds 5 to 10 mph with gusts to around 35 mph shifting to the southwest after midnight. .TUESDAY...Not as cool. Sunny in the morning, then partly sunny with a 20 percent chance of rain and snow in the afternoon. Highs 42 to 52. Southwest winds up to 15 mph. .TUESDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows 27 to 33. Southwest winds up to 10 mph with gusts to around 25 mph. .WEDNESDAY...Not as cool. Sunny in the morning, then partly sunny with a 20 percent chance of rain and snow in the afternoon. Highs 46 to 58. .WEDNESDAY NIGHT...Rain showers, snow showers likely and slight chance of thunderstorms in the evening, then snow likely and chance of rain after midnight. Light snow accumulations. Lows 29 to 35. Chance of precipitation 70 percent. .THURSDAY...Mostly sunny. Highs 50 to 60. .THURSDAY NIGHT...Mostly cloudy with a 20 percent chance of rain and snow. Lows 32 to 38. .FRIDAY...Mostly sunny. Chance of rain and snow in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 53 to 63. Chance of precipitation 40 percent. .FRIDAY NIGHT THROUGH SUNDAY...Partly cloudy. Lows 33 to 43. Highs 59 to 72. && TEMPERATURE / PRECIPITATION West Yellowstone 21 41 16 51 / 10 10 10 20 $$ MTZ327-181000- Northwest Beaverhead County- Including the cities of Dewey, Wisdom, Wise River, Big Hole Pass, and Chief Joseph Pass 1037 PM MDT Sun May 17 2026 .REST OF TONIGHT...Mostly cloudy late in the evening then becoming partly cloudy. A 50 percent chance of snow late in the evening. Patchy fog early in the morning. Lows 18 to 24. North winds 5 to 15 mph with gusts to around 35 mph. .MONDAY...Mostly sunny. Highs 36 to 46. North winds 5 to 15 mph. Gusts up to 40 mph decreasing to 30 mph in the afternoon. .MONDAY NIGHT...Mostly clear. Lows in the lower 20s. North winds up to 10 mph with gusts to around 25 mph shifting to the west after midnight. .TUESDAY...Not as cool. Mostly sunny. A 20 percent chance of rain and snow in the afternoon. Highs 45 to 53. West winds up to 15 mph. .TUESDAY NIGHT...Partly cloudy. Lows in the upper 20s. West winds up to 10 mph with gusts to around 25 mph. .WEDNESDAY...Mostly sunny. A 20 percent chance of rain and snow in the afternoon. Highs 47 to 57. .WEDNESDAY NIGHT...Mostly cloudy with chance of rain showers and slight chance of thunderstorms in the evening, then partly cloudy with slight chance of rain and snow after midnight. Lows in the lower 30s. Chance of precipitation 50 percent. .THURSDAY...Mostly sunny. Highs 51 to 61. .THURSDAY NIGHT...Mostly cloudy. Lows in the mid 30s. .FRIDAY AND FRIDAY NIGHT...Partly cloudy. Highs 54 to 64. Lows in the mid 30s. .SATURDAY AND SATURDAY NIGHT...Partly cloudy. Highs 59 to 69. Lows in the upper 30s. .SUNDAY...Sunny. Highs 61 to 71. $$ MTZ328-181000- Beaverhead and Western Madison below 6000ft- Including the cities of Bannack, Dillon, Glen, and Waterloo 1037 PM MDT Sun May 17 2026 .REST OF TONIGHT...Mostly cloudy late in the evening then clearing. A 20 percent chance of snow late in the evening. Lows in the mid 20s. North winds 15 to 20 mph decreasing to 5 to 15 mph after midnight. Gusts up to 45 mph. .MONDAY...Mostly sunny. Highs 43 to 49. North winds 10 to 20 mph with gusts to around 45 mph. .MONDAY NIGHT...Mostly clear. Lows in the mid 20s. Northeast winds 5 to 10 mph with gusts to around 30 mph shifting to the southwest after midnight. .TUESDAY...Not as cool. Mostly sunny. A 20 percent chance of rain in the afternoon. Highs 54 to 60. Southwest winds up to 15 mph. .TUESDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy.Lows in the lower 30s. Southwest winds up to 10 mph. .WEDNESDAY...Sunny in the morning then becoming partly sunny. Highs 58 to 64. .WEDNESDAY NIGHT...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening, then chance of rain after midnight. Lows in the mid 30s. Chance of precipitation 50 percent. .THURSDAY...Mostly sunny. Highs 61 to 67. .THURSDAY NIGHT...Mostly cloudy. A 20 percent chance of rain in the evening. Lows in the upper 30s. .FRIDAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs 64 to 70. .FRIDAY NIGHT THROUGH SUNDAY...Partly cloudy. Lows in the lower 40s. Highs 70 to 78. && TEMPERATURE / PRECIPITATION Dillon 25 48 23 60 / 20 10 10 20 $$ MTZ329-181000- Ruby Mountains and Southern Beaverhead Mountains- Including the city of Monida Pass 1037 PM MDT Sun May 17 2026 .REST OF TONIGHT...Windy. Mostly cloudy. Chance of snow late in the evening, then slight chance of snow after midnight. Lows in the lower 20s. North winds 15 to 30 mph with gusts to around 65 mph. Chance of snow 50 percent. .MONDAY...Windy. Mostly sunny. A 20 percent chance of snow in the morning. Highs 36 to 44. North winds 15 to 30 mph. Gusts up to 65 mph decreasing to 55 mph in the afternoon. .MONDAY NIGHT...Mostly clear. Lows around 20. North winds 5 to 10 mph with gusts to around 35 mph shifting to the southwest after midnight. .TUESDAY...Not as cool. Mostly sunny. A 20 percent chance of rain and snow in the afternoon. Highs 46 to 54. Southwest winds up to 10 mph shifting to the west in the afternoon. .TUESDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows 26 to 32. Southwest winds 5 to 15 mph decreasing to up to 5 mph after midnight. .WEDNESDAY...Sunny in the morning then becoming partly sunny. Highs 50 to 58. .WEDNESDAY NIGHT...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening, then slight chance of rain and snow after midnight. Lows in the lower 30s. Chance of precipitation 50 percent. .THURSDAY...Mostly sunny. Highs 55 to 61. .THURSDAY NIGHT...Partly cloudy with a 20 percent chance of rain in the evening, then mostly cloudy after midnight. Lows in the mid 30s. .FRIDAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs 58 to 64. .FRIDAY NIGHT THROUGH SUNDAY...Breezy. Partly cloudy. Lows in the upper 30s. Highs 64 to 72. $$