FPUS55 KTFX 180417 ZFPTFX Zone Forecast Product for Central and Southwest Montana National Weather Service Great Falls MT 1017 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 1017 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. Lows 20 to 26. Northwest winds up to 10 mph. .MONDAY...Not as cool. Mostly sunny. A 20 percent chance of thunderstorms and snow showers in the afternoon. Highs 39 to 49. West winds up to 10 mph. .MONDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers and snow showers in the evening, then partly cloudy after midnight. Lows 27 to 33. Southwest winds 5 to 15 mph with gusts to around 30 mph. .TUESDAY...Breezy. Not as cool. Mostly sunny. Chance of rain showers, snow showers and slight chance of thunderstorms in the afternoon. Highs 43 to 55. Southwest winds 10 to 25 mph. Chance of precipitation 50 percent. .TUESDAY NIGHT...Partly cloudy in the evening, then mostly cloudy with a 40 percent chance of rain showers and snow showers after midnight. Lows 31 to 37. West winds 10 to 20 mph with gusts to around 35 mph. .WEDNESDAY...Mostly cloudy. Rain showers likely and chance of snow showers in the morning, then rain showers, snow showers likely and slight chance of thunderstorms in the afternoon. Light snow accumulations. Highs 43 to 53. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Mostly cloudy with a 40 percent chance of rain and snow in the evening, then partly cloudy after midnight. Lows 31 to 37. .THURSDAY...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. $$ MTZ307-181000- Southern Rocky Mountain Front- Including the city of Rogers Pass 1017 PM MDT Sun May 17 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... .REST OF TONIGHT...Mostly cloudy late in the evening then becoming partly cloudy. A 20 percent chance of snow late in the evening. Patchy fog after midnight. Near steady temperature in the mid 20s. North winds up to 10 mph. .MONDAY...Not as cool. Partly sunny. Chance of snow showers, rain showers and slight chance of thunderstorms in the afternoon. Highs 38 to 48. North winds up to 10 mph. Chance of precipitation 50 percent. .MONDAY NIGHT...Mostly cloudy with a 20 percent chance of snow showers in the evening, then partly cloudy after midnight. Lows 23 to 29. West winds up to 10 mph. Gusts up to 25 mph after midnight. .TUESDAY...Not as cool. Mostly sunny. Highs 43 to 55. West winds 5 to 15 mph with gusts to around 30 mph. .TUESDAY NIGHT...Partly cloudy. Lows 29 to 35. West winds 5 to 15 mph with gusts to around 35 mph. .WEDNESDAY...Partly sunny. Chance of rain showers and snow showers in the morning, then chance of rain showers, snow showers and slight chance of thunderstorms in the afternoon. Highs 43 to 55. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy with chance of rain and snow in the evening, then partly cloudy with slight chance of rain and snow after midnight. Lows 29 to 35. Chance of precipitation50 percent. .THURSDAY...Mostly sunny. Highs 49 to 59. .THURSDAY NIGHT...Mostly cloudy with a 20 percent chance of rain. Lows 32 to 38. .FRIDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 50 to 60. Chance of precipitation 40 percent. .FRIDAY NIGHT...Partly cloudy. A 20 percent chance of rain in the evening. Lows 33 to 39. .SATURDAY AND SATURDAY NIGHT...Partly cloudy. Highs 54 to 66. Lows 36 to 42. .SUNDAY...Sunny. Highs 55 to 67. $$ MTZ302-181000- Northern High Plains- Including the cities of Browning, Heart Butte, and Dupuyer 1017 PM MDT Sun May 17 2026 .REST OF TONIGHT...Partly cloudy. Lows in the mid 20s. Northwest winds up to 10 mph. .MONDAY...Not as cool. Mostly sunny. A 20 percent chance of rain showers in the afternoon. Highs in the lower 50s. West winds up to 10 mph shifting to the south in the afternoon. .MONDAY NIGHT...Mostly cloudy in the evening then clearing. Lows in the lower 30s. Southwest winds 5 to 15 mph. .TUESDAY...Breezy. Mostly sunny. Highs around 60. West winds 15 to 25 mph. .TUESDAY NIGHT...Breezy. Partly cloudy. A 20 percent chance of rain showers after midnight. Lows in the upper 30s. West winds 10 to 25 mph decreasing to 10 to 15 mph after midnight. .WEDNESDAY...Mostly cloudy. Chance of rain showers in the morning, then rain showers likely and slight chance of thunderstorms in the afternoon. Highs in the mid 50s. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Mostly cloudy with a 40 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the mid 30s. .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. $$ MTZ308-181000- Southern High Plains- Including the cities of Bynum, Choteau, and Pendroy 1017 PM MDT Sun May 17 2026 .REST OF TONIGHT...Mostly cloudy in the late evening and early morning then becoming partly cloudy. Near steady temperature around 30. Northwest winds up to 10 mph. .MONDAY...Not as cool. Partly sunny. A 20 percent chance of rain showers in the afternoon. Highs in the lower 50s. Northwest winds up to 10 mph shifting to the east in the afternoon. .MONDAY NIGHT...Partly cloudy. Lows in the lower 30s. Southwest winds 5 to 10 mph. .TUESDAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs in the lower 60s. West winds 5 to 15 mph with gusts to around 30 mph. .TUESDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 30s. West winds 5 to 15 mph with gusts to around 30 mph. .WEDNESDAY...Partly sunny. Chance of rain showers in the morning, then rain showers likely and slight chance of thunderstorms in the afternoon. Highs around 60. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Mostly cloudy with chance of rain showers and slight chance of thunderstorms in the evening, then partly cloudy with slight chance of rain after midnight. Lows in the upper 30s. Chance of precipitation 50 percent. .THURSDAY...Mostly sunny. Highs in the mid 60s. .THURSDAY NIGHT...Mostly cloudy with a 20 percent chance of rain. Lows in the lower 40s. .FRIDAY...Partly sunny. Chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of precipitation 40 percent. .FRIDAY NIGHT...Partly cloudy. A 20 percent chance of rain in the evening. Lows in the lower 40s. .SATURDAY THROUGH SUNDAY...Partly cloudy. Highs in the mid 70s. Lows in the mid 40s. $$ MTZ303-181000- Eastern Glacier, Western Toole, and Central Pondera- Including the cities of Cut Bank, Ethridge, and Santa Rita 1017 PM MDT Sun May 17 2026 .REST OF TONIGHT...Partly cloudy. Lows in the mid 20s. Northwest winds up to 10 mph. .MONDAY...Not as cool. Mostly sunny. Highs in the mid 50s. Northwest winds up to 5 mph shifting to the east in the afternoon. .MONDAY NIGHT...Partly cloudy. Lows in the lower 30s. Southwest winds 5 to 10 mph. .TUESDAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs in the lower 60s. West winds 5 to 15 mph increasing to 15 to 20 mph in the afternoon. .TUESDAY NIGHT...Mostly cloudy in the evening, then partly cloudy with a 20 percent chance of rain showers after midnight. Lows in the upper 30s. West winds 10 to 20 mph. .WEDNESDAY...Partly sunny. Slight chance of rain showers in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the upper 50s. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy with a 20 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 30 63 / 10 20 10 10 $$ MTZ304-181000- Eastern Toole and Liberty- Including the cities of Devon, Shelby, Chester, Galata, Joplin, Lothair, and Whitlash 1017 PM MDT Sun May 17 2026 .REST OF TONIGHT...Mostly cloudy with a 20 percent chance of snow late in the evening, then partly cloudy after midnight. Patchy fog after midnight. Lows in the mid 20s. Northwest winds up to 10 mph. .MONDAY...Not as cool. Mostly sunny. Patchy fog in the morning. Highs in the mid 50s. North winds up to 5 mph shifting to the northeast in the afternoon. .MONDAY NIGHT...Partly cloudy. Lows in the lower 30s. South winds 5 to 10 mph with gusts to around 25 mph. .TUESDAY...Sunny in the morning, then partly sunny with a 20 percent chance of thunderstorms in the afternoon. Highs in the mid 60s. Southwest winds up to 15 mph. .TUESDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 30s. West winds 5 to 15 mph. .WEDNESDAY...Partly sunny. Slight chance of rain showers in the morning, then chance of rain showers in the afternoon. Highs in the lower 60s. Chance of showers 50 percent. .WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the upper 30s. .THURSDAY...Mostly sunny. Highs in the mid 60s. .THURSDAY NIGHT...Mostly cloudy. Slight chance of rain in the evening, then chance of rain after midnight. Lows in the lower 40s. Chance of rain 30 percent. .FRIDAY...Partly sunny. Slight chance of rain in the morning, then slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of precipitation 20 percent. .FRIDAY NIGHT THROUGH SUNDAY...Partly cloudy. Lows in the mid 40s. Highs in the mid 70s. $$ MTZ305-181000- Hill County- Including the city of Havre 1017 PM MDT Sun May 17 2026 .REST OF TONIGHT...Mostly cloudy. A 20 percent chance of rain late in the evening. Lows in the upper 20s. Northwest winds 5 to 15 mph. .MONDAY...Mostly sunny. Highs in the mid 50s. North winds 5 to 10 mph. .MONDAY NIGHT...Partly cloudy. Lows in the upper 20s. Southeast winds 5 to 10 mph. .TUESDAY...Warmer, sunny. Highs in the mid 60s. South winds 5 to 15 mph. .TUESDAY NIGHT...Mostly cloudy. A 20 percent chance of rain showers in the evening. Lows in the upper 30s. Southwest winds 5 to 10 mph. .WEDNESDAY...Partly sunny. A 40 percent chance of rain showers in the afternoon. Highs in the lower 60s. .WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the upper 30s. .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 55 28 68 / 20 10 0 50 $$ MTZ306-181000- Northern Blaine County- Including the cities of Chinook, Zurich, Harlem, Hogeland, and Fort Belknap 1017 PM MDT Sun May 17 2026 .REST OF TONIGHT...Colder. Mostly cloudy. A 20 percent chance of rain and snow late in the evening. Lows in the upper 20s. Northwest winds 10 to 20 mph. .MONDAY...Mostly cloudy. Highs around 50. North winds 10 to 15 mph. .MONDAY NIGHT...Partly cloudy. Lows in the upper 20s. Northeast winds 5 to 10 mph shifting to the southeast after midnight. .TUESDAY...Not as cool. Sunny. Highs in the mid 60s. Southeast winds 5 to 15 mph shifting to the south 10 to 15 mph in the afternoon. .TUESDAY NIGHT...Not as cool. Mostly cloudy. Lows in the upper 30s. South winds 5 to 15 mph. .WEDNESDAY...Partly sunny. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the upper 30s. .THURSDAY...Mostly sunny. Highs in the mid 60s. .THURSDAY NIGHT...Mostly cloudy. A 30 percent chance of rain after midnight. Lows in the lower 40s. .FRIDAY...Partly sunny. Chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of precipitation 40 percent. .FRIDAY NIGHT...Partly cloudy with a 20 percent chance of rain. Lows in the lower 40s. .SATURDAY THROUGH SUNDAY...Breezy. Partly cloudy. Highs in the mid 70s. Lows in the mid 40s. $$ MTZ309-181000- Eastern Pondera and Eastern Teton- Including the cities of Brady, Conrad, and Ledger 1017 PM MDT Sun May 17 2026 .REST OF TONIGHT...Partly cloudy late in the evening then becoming mostly 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. Northwest 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...Sunny in the morning, then partly sunny with a 20 percent chance of thunderstorms in the afternoon. Highs in the mid 60s. West winds 5 to 15 mph. .TUESDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 30s. West winds 5 to 15 mph. .WEDNESDAY...Partly sunny. Slight chance of rain showers 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 in the evening, then partly cloudy after midnight. Lows in the upper 30s. .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. $$ MTZ310-181000- Western and Central Chouteau County- Including the cities of Floweree, Carter, and Fort Benton 1017 PM MDT Sun May 17 2026 .REST OF TONIGHT...Mostly cloudy. Slight chance of rain in the late evening and early morning. Slight chance of snow after midnight. Lows in the upper 20s. Northwest winds up to 10 mph with gusts to around 25 mph. Chance of precipitation 20 percent. .MONDAY...Not as cool. Mostly sunny. Highs in the mid 50s. Northwest winds up to 10 mph with gusts to around 25 mph. .MONDAY NIGHT...Partly cloudy. Lows in the lower 30s. Southeast winds 5 to 10 mph. .TUESDAY...Warmer. Mostly sunny. Highs in the mid 60s. Southwest winds 5 to 15 mph. .TUESDAY NIGHT...Mostly cloudy. Lows around 40. Southwest winds 5 to 10 mph. .WEDNESDAY...Partly sunny. Slight chance of rain showers in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy. A 50 percent chance of rain in the evening. Lows in the upper 30s. .THURSDAY...Mostly sunny. Highs in the upper 60s. .THURSDAY NIGHT...Mostly cloudy. A 20 percent chance of rain after midnight. Lows in the lower 40s. .FRIDAY...Mostly sunny. Chance of rain in the morning, then slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of precipitation 40 percent. .FRIDAY NIGHT THROUGH SUNDAY...Partly cloudy. Lows in the mid 40s. Highs in the upper 70s. $$ MTZ311-181000- Bears Paw Mountains and Southern Blaine- Including the city of Rocky Boy 1017 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...Partly sunny. Highs 47 to 53. North winds 5 to 15 mph. Gusts up to 30 mph in the morning. .MONDAY NIGHT...Mostly clear. Lows around 30. Northeast winds 5 to 10 mph shifting to the southeast after midnight. .TUESDAY...Warmer. Mostly sunny. Highs 60 to 66. South winds 5 to 10 mph shifting to the southwest 5 to 15 mph in the afternoon. .TUESDAY NIGHT...Not as cool. Mostly cloudy. Lows in the lower 40s. Southwest winds up to 10 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 with a 30 percent chance of rain in the evening, then partly cloudy after midnight. Lows around 40. .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 of rain after midnight. Lows in the mid 40s. .SATURDAY THROUGH SUNDAY...Partly cloudy. Highs 71 to 79. Lows in the upper 40s.$$ MTZ312-181000- Cascade County below 5000ft- Including the city of Great Falls 1017 PM MDT Sun May 17 2026 .REST OF TONIGHT...Mostly cloudy. Slight chance of rain and snow late in the evening. Slight chance of snow early in the morning. Patchy fog after midnight. Near steady temperature in the lower 30s. Northwest winds up to 10 mph. Chance of precipitation 20 percent. .MONDAY...Not as cool. Partly sunny. Patchy fog in the morning. Highs 50 to 56. West winds up to 10 mph shifting to the northeast in the afternoon. .MONDAY NIGHT...Partly cloudy. Lows around 30. Southeast winds 5 to 10 mph shifting to the south after midnight. .TUESDAY...Not as cool. Mostly sunny. Highs in the mid 60s. Southwest winds 5 to 15 mph. .TUESDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows around 40. Southwest winds 5 to 10 mph. .WEDNESDAY AND WEDNESDAY NIGHT...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms. Highs in the lower 60s. Lows in the upper 30s. Chance of precipitation 50 percent. .THURSDAY...Mostly sunny. Highs in the mid 60s. .THURSDAY NIGHT...Mostly cloudy with a 20 percent chance of rain. Lows in the lower 40s. .FRIDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of precipitation 40 percent. .FRIDAY NIGHT...Partly cloudy. A 20 percent chance of rain in the evening. Lows in the lower 40s. .SATURDAY THROUGH SUNDAY...Partly cloudy. Highs in the mid 70s. Lows in the upper 40s. && TEMPERATURE / PRECIPITATION Great Falls Arpt 28 53 30 65 / 20 0 0 30 $$ MTZ313-181000- Judith Basin County and Judith Gap- Including the cities of Raynesford, Geyser, Stanford, Windham, Benchland, Hobson, and Moccasin 1017 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...Partly sunny. A 20 percent chance of snow in the morning. Highs in the upper 40s. Northwest winds 10 to 15 mph with gusts to around 35 mph. .MONDAY NIGHT...Partly cloudy. Lows in the upper 20s. Northeast winds up to 10 mph shifting to the south after midnight. .TUESDAY...Not as cool. Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs around 60. West winds 5 to 10 mph. .TUESDAY NIGHT...Not as cool. Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 30s. Southwest winds up to 15 mph. .WEDNESDAY...Mostly sunny with slight chance of rain showers in the morning, then mostly cloudy with rain showers likely and chance of thunderstorms in the afternoon. Highs in the upper 50s. Chance of precipitation 70 percent. .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 after midnight. Lows in the upper 30s. Chance of precipitation 50 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 mid 70s. $$MTZ314-181000- Fergus County below 4500ft- Including the cities of Hilger and Lewistown 1017 PM MDT Sun May 17 2026 .REST OF TONIGHT...Mostly cloudy. Slight chance of rain and snow late in the evening, then slight chance of snow after midnight. Near steady temperature in the mid 30s. Northwest winds 10 to 20 mph with gusts to around 35 mph. Chance of precipitation 20 percent. .MONDAY...Partly sunny. Highs around 50. Northwest winds 5 to 15 mph with gusts to around 30 mph. .MONDAY NIGHT...Partly cloudy. Lows in the upper 20s. Northeast winds 5 to 10 mph shifting to the south after midnight. .TUESDAY...Warmer, sunny. Highs 60 to 66. South winds up to 10 mph shifting to the west in the afternoon. .TUESDAY NIGHT...Not as cool. Mostly cloudy. Lows around 40. Southwest winds 5 to 10 mph. .WEDNESDAY AND WEDNESDAY NIGHT...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms. Highs 60 to 66. Lows around 40. Chance of precipitation 50 percent. .THURSDAY...Mostly sunny. Highs in the mid 60s. .THURSDAY NIGHT...Mostly cloudy. A 20 percent chance of rain after midnight. Lows in the lower 40s. .FRIDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of precipitation 40 percent. .FRIDAY NIGHT AND SATURDAY...Partly cloudy. Lows in the mid 40s. Highs in the mid 70s. .SATURDAY NIGHT...Partly cloudy. Lows in the upper 40s. .SUNDAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs in the upper 70s. && TEMPERATURE / PRECIPITATION Lewistown 27 47 25 60 / 40 40 0 30 $$ MTZ315-181000- Upper Blackfoot and MacDonald Pass- Including the cities of Marysville, Lincoln, Flesher Pass, and MacDonald Pass 1017 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. Partly sunny. A 20 percent chance of thunderstorms and snow showers in the afternoon. Highs 42 to 52. North winds up to 10 mph. .MONDAY NIGHT...Partly cloudy. Lows in the upper 20s. West winds up to 10 mph. .TUESDAY...Not as cool. Mostly sunny. Highs 49 to 59. West winds 5 to 15 mph. .TUESDAY NIGHT...Partly cloudy. Lows in the mid 30s. West winds up to 15 mph. .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 with a 50 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the mid 30s. .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. $$ MTZ316-181000- Gates of the Mountains- Including the cities of Canyon Creek, Wolf Creek, and Craig 1017 PM MDT Sun May 17 2026 .REST OF TONIGHT...Mostly cloudy. A 20 percent chance of snow after midnight. Patchy fog after midnight. Near steady temperature in the lower 30s. Northwest winds up to 10 mph. .MONDAY...Not as cool. Mostly cloudy in the morning then becoming mostly sunny. Patchy fog in the morning. Highs 47 to 55. North winds up to 10 mph. .MONDAY NIGHT...Partly cloudy. Lows in the lower 30s. West winds up to 10 mph shifting to the southwest after midnight. .TUESDAY...Not as cool. Mostly sunny. Highs 56 to 64. Southwest winds 5 to 15 mph. .TUESDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 30s. Southwest winds up to 15 mph. .WEDNESDAY AND WEDNESDAY NIGHT...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms. Highs 55 to 63. Lows in the upper 30s. Chance of precipitation 50 percent. .THURSDAY...Mostly sunny. Highs 59 to 67. .THURSDAY NIGHT...Mostly cloudy. Lows in the lower 40s. .FRIDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 61 to 69. Chance of precipitation 30 percent. .FRIDAY NIGHT...Partly cloudy. A 20 percent chance of rain in the evening. Lows in the lower 40s. .SATURDAY THROUGH SUNDAY...Partly cloudy. Highs 68 to 77. Lows in the mid 40s. $$ MTZ317-181000- Little Belt and Highwood Mountains- Including the cities of Monarch, Neihart, and Kings Hill Pass 1017 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 early in the morning. Near steady temperature in the mid 20s. Northwest winds 5 to 15 mph with gusts to around 35 mph. Chance of snow 50 percent. .MONDAY...Not as cool. Mostly cloudy with chance of snow in the morning, then mostly sunny in the afternoon. Highs 38 to 46. North winds 5 to 15 mph with gusts to around 35 mph. Chance of snow 50 percent. .MONDAY NIGHT...Partly cloudy. Lows 22 to 28. Northeast winds up to 10 mph shifting to the south after midnight. Gusts up to 25 mph. .TUESDAY...Not as cool. Mostly sunny. A 20 percent chance of rain showers in the afternoon. Highs 48 to 56. West winds 5 to 15 mph. .TUESDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows 31 to 39. Southwest winds 5 to 10 mph with gusts to around 25 mph. .WEDNESDAY...Mostly sunny with slight chance of rain showers in the morning, then mostly cloudy with rain showers, snow showers likely and slight chance of thunderstorms in the afternoon. Highs 48 to 56. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Mostly cloudy. Chance of rain showers with possible snow showers and thunderstorms likely in the evening, then slight chance of rain and snow after midnight. Lows 31 to 37. Chance of precipitation 60 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. $$ MTZ318-181000- Snowy and Judith Mountains- 1017 PM MDT Sun May 17 2026 .REST OF TONIGHT...Breezy. Cloudy with a 50 percent chance of snow. Near steady temperature in the upper 20s. Northwest winds 10 to 25 mph with gusts to around 40 mph. .MONDAY...Breezy. Mostly cloudy. Chance of snow in the morning, then slight chance of snow showers in the afternoon. Highs 38 to 44. Northwest winds 15 to 25 mph decreasing to 10 to 15 mph in the afternoon. Chance of snow 50 percent. .MONDAY NIGHT...Partly cloudy. Lows in the mid 20s. North winds 5 to 10 mph with gusts to around 25 mph shifting to the south after midnight. .TUESDAY...Not as cool. Mostly sunny. A 20 percentchance of rain showers in the afternoon. Highs 50 to 58. Southwest winds 5 to 10 mph. .TUESDAY NIGHT...Not as cool. Mostly cloudy in the evening then becoming partly cloudy. Lows in the mid 30s. Southwest winds up to 10 mph with gusts to around 25 mph. .WEDNESDAY...Mostly sunny in the morning, then mostly cloudy with rain showers likely and slight chance of thunderstorms in the afternoon. Highs 50 to 58. Chance of precipitation 60 percent. .WEDNESDAY NIGHT...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening, then chance of rain and snow after midnight. Lows in the mid 30s. Chance of precipitation 50 percent. .THURSDAY...Mostly sunny with a 20 percent chance of rain. Highs 54 to 60. .THURSDAY NIGHT...Mostly cloudy. Slight chance of rain in the evening, then chance of rain after midnight. Lows in the upper 30s. Chance of rain 30 percent. .FRIDAY...Partly sunny. Slight chance of rain in the morning, then chance of thunderstorms in the afternoon. Highs 56 to 62. Chance of precipitation 40 percent. .FRIDAY NIGHT...Partly cloudy. A 20 percent chance of rain in the evening. Lows around 40. .SATURDAY AND SATURDAY NIGHT...Partly cloudy. Highs 64 to 70. Lows in the mid 40s. .SUNDAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs 67 to 73. $$ MTZ319-181000- Helena Valley- Including the city of Helena 1017 PM MDT Sun May 17 2026 .REST OF TONIGHT...Partly cloudy in the late evening and early morning then becoming mostly cloudy. Patchy fog early in the morning. Lows in the upper 20s. Northwest winds up to 10 mph. .MONDAY...Mostly sunny. Highs in the mid 50s. Northwest winds up to 10 mph. .MONDAY NIGHT...Partly cloudy. Lows around 30. Northwest winds up to 10 mph shifting to the south after midnight. .TUESDAY...Mostly sunny. Highs in the mid 60s. South winds up to 5 mph shifting to the west in the afternoon. .TUESDAY NIGHT...Mostly cloudy in the evening then clearing. Lows in the mid 30s. Southwest winds up to 10 mph. .WEDNESDAY...Mostly sunny. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of precipitation 40 percent. .WEDNESDAY NIGHT...Mostly cloudy with a 40 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the upper 30s. .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 56 32 65 / 10 10 10 20 $$ MTZ320-181000- Big Belt, Bridger and Castle Mountains- Including the cities of Trident, Maudlow, Battle Ridge Pass, Bozeman Pass, and Deep Creek Pass 1017 PM MDT Sun May 17 2026 .REST OF TONIGHT...Mostly cloudy. A 20 percent chance of snow in the late evening and early morning. Near steady temperature in the upper 20s. North winds 5 to 15 mph with gusts to around 35 mph. .MONDAY...Mostly cloudy in the morning, then mostly sunny with a 20 percent chance of snow showers in the afternoon. Highs 38 to 48. North winds 5 to 15 mph with gusts to around 35 mph. .MONDAY NIGHT...Mostly clear. Lows 23 to 29. North winds 5 to 10 mph shifting to the south after midnight. Gusts up to 25 mph. .TUESDAY...Not as cool. Mostly sunny. Highs 48 to 58. Southwest winds 5 to 15 mph with gusts to around 30 mph. .TUESDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows in the mid 30s. Southwest winds up to 10 mph with gusts to around 30 mph. .WEDNESDAY...Mostly sunny. Chance of rain showers and slight chance of thunderstorms in the afternoon.Highs 49 to 59. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy with chance of rain in the evening, then partly cloudy with chance of snow and slight chance of rain after midnight. Lows in the mid 30s. Chance of precipitation 50 percent. .THURSDAY...Mostly sunny. Highs 53 to 61. .THURSDAY NIGHT...Mostly cloudy with a 20 percent chance of rain. Lows in the upper 30s. .FRIDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 56 to 64. Chance of precipitation 40 percent. .FRIDAY NIGHT...Partly cloudy. A 20 percent chance of rain in the evening. Lows in the upper 30s. .SATURDAY THROUGH SUNDAY...Partly cloudy. Highs 61 to 74. Lows in the lower 40s. $$ MTZ321-181000- Meagher County Valleys- Including the cities of Martinsdale, Checkerboard, Ringling, and White Sulphur Springs 1017 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. A 20 percent chance of snow showers in the afternoon. Highs in the upper 40s. North winds 10 to 15 mph with gusts to around 30 mph. .MONDAY NIGHT...Mostly clear. Lows in the mid 20s. North winds 5 to 10 mph with gusts to around 25 mph shifting to the southeast after midnight. .TUESDAY...Mostly sunny. Highs in the upper 50s. 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 in the lower 30s. Southwest winds up to 10 mph. Gusts up to 25 mph in the evening. .WEDNESDAY AND WEDNESDAY NIGHT...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms. Highs in the upper 50s. Lows in the mid 30s. Chance of precipitation 50 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. $$ MTZ322-181000- Elkhorn and Boulder Mountains- Including the cities of Montana City, Clancy, Boulder, Corbin, Wickes, Elk Park Pass, and Homestake Pass 1017 PM MDT Sun May 17 2026 .REST OF TONIGHT...Mostly cloudy with a 20 percent chance of snow. Near steady temperature in the mid 20s. North winds up to 10 mph. Gusts up to 45 mph decreasing to 35 mph after midnight. .MONDAY...Not as cool. Mostly sunny. Highs 39 to 49. North winds 5 to 15 mph. Gusts up to 40 mph decreasing to 30 mph in the afternoon. .MONDAY NIGHT...Partly cloudy. Lows 23 to 29. North winds up to 10 mph with gusts to around 25 mph shifting to the west after midnight. .TUESDAY...Not as cool. Mostly sunny. Highs 47 to 57. West winds up to 10 mph. .TUESDAY NIGHT...Mostly cloudy in the evening then clearing. Lows 30 to 36. West winds up to 10 mph with gusts to around 25 mph. .WEDNESDAY...Mostly sunny. Chance of snow showers and slight chance of thunderstorms in the afternoon. Highs 49 to 59. Chance of precipitation 40 percent. .WEDNESDAY NIGHT...Mostly cloudy with a 30 percent chance of rain in the evening, then partly cloudy after midnight. Lows 31 to 37. .THURSDAY...Mostly sunny. Highs 54 to 62. .THURSDAY NIGHT...Mostly cloudy. Lows 34 to 40. .FRIDAY...Mostly sunny. Slight chance of rain in the morning, then slight chance of thunderstorms in the afternoon. Highs 56 to 66. Chance of precipitation 20 percent. .FRIDAY NIGHT THROUGH SUNDAY...Partly cloudy. Lows 35 to 44. Highs 62 to 74. $$ MTZ323-181000- Canyon Ferry Area- Including the cities of Toston, Townsend, and Winston 1017 PM MDT Sun May 17 2026 .REST OF TONIGHT...Partly cloudy. Lows around 30. Northwest winds 5 to 15 mph with gusts to around 40 mph. .MONDAY...Mostly sunny. Highs in the lower 50s. North winds 5 to 15 mph with gusts to around 30 mph. .MONDAY NIGHT...Mostly clear. Lows in the lower 30s. North winds 5 to 10 mph shifting to the south after midnight. .TUESDAY...Mostly sunny. Highs in the lower 60s. South winds up to 10 mph shifting to the west in the afternoon. .TUESDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 30s. Northwest winds up to 10 mph shifting to the southwest after midnight. .WEDNESDAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs in the lower 60s. .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 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. $$ MTZ324-181000- Missouri Headwaters- Including the cities of Harrison, Three Forks, Willow Creek, Pony, and Whitehall 1017 PM MDT Sun May 17 2026 .REST OF TONIGHT...Partly cloudy. Lows in the upper 20s. Northwest winds up to 15 mph. Gusts up to 30 mph late in the evening. .MONDAY...Mostly sunny. Highs in the lower 50s. North winds 5 to 15 mph. .MONDAY NIGHT...Partly cloudy. Lows in the upper 20s. Northeast winds 5 to 10 mph shifting to the southwest after midnight. .TUESDAY...Mostly sunny. Highs around 60. Southwest winds up to 10 mph. .TUESDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows in the mid 30s. West winds up to 10 mph. .WEDNESDAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs in the lower 60s. .WEDNESDAY NIGHT...Mostly cloudy with chance of rain in the evening, then partly cloudy with slight chance of rain after midnight. Lows in the upper 30s. Chance of rain 40 percent. .THURSDAY...Mostly sunny. Highs in the mid 60s. .THURSDAY NIGHT...Mostly cloudy with a 20 percent chance of rain. Lows around 40. .FRIDAY...Mostly sunny. Slight chance of rain in the morning, then slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of precipitation 20 percent. .FRIDAY NIGHT THROUGH SATURDAY NIGHT...Partly cloudy. Lows in the lower 40s. Highs in the mid 70s. .SUNDAY...Sunny. Highs in the upper 70s. $$ MTZ325-181000- Madison River Valley- Including the cities of Cameron, Ennis, Jeffers, McAllister, and Norris 1017 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 35 mph. .MONDAY...Breezy. Mostly cloudy with a 20 percent chance of snow in the morning, then mostly sunny in the afternoon. Highs in the upper 40s. North winds 10 to 25 mph. .MONDAY NIGHT...Mostly clear. Lows in the mid 20s. North winds 5 to 10 mph with gusts to around 30 mph shifting to the south after midnight. .TUESDAY...Not as cool. Mostly sunny. Highs in the upper 50s. South winds up to 10 mph shifting to the west in the afternoon. .TUESDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows in themid 30s. South winds up to 10 mph. .WEDNESDAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs in the lower 60s. .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 40 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. $$ MTZ326-181000- Gallatin Valley- Including the cities of Bozeman and Gallatin Gateway 1017 PM MDT Sun May 17 2026 .REST OF TONIGHT...Mostly cloudy. A 20 percent chance of snow after midnight. Patchy fog early in the morning. Lows in the upper 20s. Northwest winds up to 10 mph. Gusts up to 30 mph decreasing to 20 mph after midnight. .MONDAY...Partly sunny. Patchy fog in the morning. Slight chance of snow in the morning, then slight chance of rain showers and snow showers in the afternoon. Highs around 50. Northwest winds 5 to 10 mph. Chance of precipitation 20 percent. .MONDAY NIGHT...Mostly clear. Lows in the upper 20s. Northeast winds 5 to 10 mph shifting to the southeast after midnight. .TUESDAY...Sunny. Highs around 60. South winds up to 5 mph shifting to the west in the afternoon. .TUESDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows in the mid 30s. West winds up to 10 mph shifting to the south after midnight. .WEDNESDAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs in the lower 60s. .WEDNESDAY NIGHT...Mostly cloudy with a 50 percent chance of rain. Lows in the upper 30s. .THURSDAY...Mostly sunny. Highs in the mid 60s. .THURSDAY NIGHT...Mostly cloudy with a 20 percent chance of rain. Lows in the upper 30s. .FRIDAY...Partly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of precipitation 30 percent. .FRIDAY NIGHT THROUGH SATURDAY NIGHT...Partly cloudy. Lows in the lower 40s. Highs in the mid 70s. .SUNDAY...Sunny. Highs in the upper 70s. && TEMPERATURE / PRECIPITATION Bozeman Airport 25 51 25 61 / 10 10 0 10 Bozeman MSU 27 49 27 59 / 20 20 10 10 $$ MTZ330-181000- Gallatin and Madison County Mountains and Centennial Mountains- Including the cities of Big Sky, West Yellowstone, Targhee Pass, and Raynolds Pass 1017 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. Near steady temperature in the mid 20s. North winds 10 to 20 mph with gusts to around 50 mph. Chance of snow 40 percent. .MONDAY...Breezy. Mostly cloudy with slight chance of snow in the morning, then mostly sunny with slight chance of snow showers in the afternoon. Highs 34 to 44. North winds 10 to 25 mph. Gusts up to 50 mph decreasing to 40 mph in the afternoon. Chance of snow 20 percent. .MONDAY NIGHT...Mostly clear. Lows 19 to 25. North winds 5 to 15 mph with gusts to around 35 mph shifting to the southwest after midnight. .TUESDAY...Not as cool. Mostly sunny. Highs 43 to 53. 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. Gusts up to 25 mph in the evening. .WEDNESDAY...Mostly sunny. A 20 percent chance of thunderstorms and snow showers in the afternoon. Highs 45 to 57. .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...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 44 18 54 / 10 10 10 10 $$ MTZ327-181000- Northwest Beaverhead County- Including the cities of Dewey, Wisdom, Wise River, Big Hole Pass, and Chief Joseph Pass 1017 PM MDT Sun May 17 2026 .REST OF TONIGHT...Mostly cloudy late in the evening then becoming partly cloudy. A 50 percent chance of snow late in the evening. Patchy fog early in the morning. Near steady temperature in the mid 20s. North winds up to 15 mph with gusts to around 35 mph. .MONDAY...Not as cool. Mostly sunny. A 20 percent chance of snow showers in the afternoon. Highs 38 to 48. North winds 5 to 15 mph. Gusts up to 40 mph decreasing to 30 mph in the afternoon. .MONDAY NIGHT...Partly cloudy. Lows in the mid 20s. North winds 5 to 10 mph with gusts to around 25 mph shifting to the west after midnight. .TUESDAY...Not as cool. Mostly sunny. Highs 45 to 55. West winds up to 10 mph. Gusts up to 25 mph in the afternoon. .TUESDAY NIGHT...Partly cloudy. Lows around 30. West winds up to 10 mph with gusts to around 25 mph. .WEDNESDAY...Mostly sunny. Highs 47 to 57. .WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the lower 30s. .THURSDAY...Mostly sunny. Highs 51 to 61. .THURSDAY NIGHT...Mostly cloudy. Lows in the mid 30s. .FRIDAY AND FRIDAY NIGHT...Partly cloudy. Highs 54 to 64. Lows in the mid 30s. .SATURDAY AND SATURDAY NIGHT...Partly cloudy. Highs 59 to 69. Lows in the upper 30s. .SUNDAY...Sunny. Highs 61 to 71. $$ MTZ328-181000- Beaverhead and Western Madison below 6000ft- Including the cities of Bannack, Dillon, Glen, and Waterloo 1017 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 46 to 52. North winds 10 to 20 mph with gusts to around 45 mph. .MONDAY NIGHT...Mostly clear. Lows in the upper 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. Highs 55 to 61. Southwest 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...Sunny in the morning then becoming partly sunny. Highs 58 to 64. .WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the mid 30s. .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 51 26 60 / 20 0 1010 $$ MTZ329-181000- Ruby Mountains and Southern Beaverhead Mountains- Including the city of Monida Pass 1017 PM MDT Sun May 17 2026 .REST OF TONIGHT...Windy. Mostly cloudy. Chance of snow late in the evening, then slight chance of snow after midnight. Lows in the lower 20s. North winds 15 to 30 mph with gusts to around 60 mph. Chance of snow 50 percent. .MONDAY...Windy. Mostly sunny. Highs 39 to 47. North winds 15 to 30 mph. Gusts up to 60 mph decreasing to 50 mph in the afternoon. .MONDAY NIGHT...Mostly clear. Lows in the mid 20s. North winds 10 to 15 mph with gusts to around 35 mph becoming southwest up to 5 mph after midnight. .TUESDAY...Not as cool. Mostly sunny. Highs 47 to 55. Southwest winds up to 15 mph. .TUESDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows in the lower 30s. Southwest winds 5 to 15 mph decreasing to up to 5 mph after midnight. .WEDNESDAY...Sunny in the morning then becoming partly sunny. Highs 51 to 59. .WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the lower 30s. .THURSDAY...Mostly sunny. Highs 55 to 61. .THURSDAY NIGHT...Partly cloudy with a 20 percent chance of rain in the evening, then mostly cloudy after midnight. Lows in the mid 30s. .FRIDAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs 58 to 64. .FRIDAY NIGHT THROUGH SUNDAY...Breezy. Partly cloudy. Lows in the upper 30s. Highs 64 to 72. $$