FPUS55 KTFX 200417 ZFPTFX Zone Forecast Product for Central and Southwest Montana National Weather Service Great Falls MT 1017 PM MDT Tue May 19 2026 Spot temperatures and probabilities of measurable precipitation are for the rest of tonight, Wednesday, Wednesday night, and Thursday. MTZ301-201000- East Glacier Park Region- Including the cities of East Glacier Park, Kiowa, Babb, Saint Mary, Marias Pass, and Logan Pass 1017 PM MDT Tue May 19 2026 .REST OF TONIGHT...Mostly cloudy. A 20 percent chance of rain showers and snow showers in the late evening and early morning. Lows 32 to 38. Southwest winds 10 to 20 mph with gusts to around 35 mph. .WEDNESDAY...Rain showers and snow showers likely in the morning, then rain showers, snow showers likely and slight chance of thunderstorms in the afternoon. Snow accumulation up to 2 inches. Snow level 6400 feet. Highs 38 to 48. Northwest winds up to 10 mph. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Mostly cloudy. A 50 percent chance of rain showers and snow showers in the evening. Lows 27 to 33. North winds up to 10 mph. .THURSDAY...Not as cool. Partly sunny. Highs 47 to 59. Northwest winds up to 10 mph. .THURSDAY NIGHT...Partly cloudy in the evening then becoming mostly cloudy. Lows 33 to 39. Southwest winds 5 to 10 mph. .FRIDAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs 51 to 63. .FRIDAY NIGHT THROUGH SUNDAY NIGHT...Breezy. Partly cloudy. Lows 37 to 49. Highs 55 to 69. .MEMORIAL DAY...Breezy. Mostly sunny. Slight chance of rain showers in the morning, then slight chance of thunderstorms in the afternoon. Highs 53 to 67. Chance of precipitation 20 percent. .MONDAY NIGHT AND TUESDAY...Mostly cloudy. A 50 percent chance of rain showers and snow showers. Lows 38 to 44. Highs 47 to 59. $$ MTZ307-201000- Southern Rocky Mountain Front- Including the city of Rogers Pass 1017 PM MDT Tue May 19 2026 .REST OF TONIGHT...Mostly cloudy. A 20 percent chance of rain showers and snow showers late in the evening. Lows 30 to 36. West winds 5 to 15 mph with gusts to around 35 mph. .WEDNESDAY...Mostly cloudy. Slight chance of rain showers and snow showers in the morning, then rain showers likely, chance of thunderstorms and snow showers likely in the afternoon. Snow accumulation up to 2 inches. Snow level 7000 feet. Highs 41 to 51. West winds 5 to 10 mph with gusts to around 25 mph. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Mostly cloudy. A 50 percent chance of rain showers and snow showers in the evening. Lows 26 to 32. North winds up to 10 mph. .THURSDAY...Partly sunny. Highs 45 to 55. North winds up to 10 mph with gusts to around 25 mph. .THURSDAY NIGHT...Partly cloudy. Lows 29 to 35. West winds up to 5 mph. Gusts up to 20 mph in the evening. .FRIDAY...Not as cool. Mostly sunny. A 20 percent chance of rain showers in the afternoon. Highs 50 to 62. .FRIDAY NIGHT THROUGH SATURDAY NIGHT...Partly cloudy. Lows 34 to 44. Highs 54 to 68. .SUNDAY...Sunny. Highs 57 to 71. .SUNDAY NIGHT...Partly cloudy. Lows 41 to 47. .MEMORIAL DAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs 57 to 71. .MONDAY NIGHT...Partly cloudy with chance of snow showers and slight chance of rain showers in the evening, then mostly cloudy with chance of rain showers and snow showers after midnight. Lows 38 to 44. Chance of precipitation 30 percent. .TUESDAY...Partly sunny. Chance of rain showers and snow showers in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 50 to 62. Chance of precipitation 50 percent. $$ MTZ302-201000- Northern High Plains- Including the cities of Browning, Heart Butte, and Dupuyer 1017 PM MDT Tue May 19 2026 .REST OF TONIGHT...Mostly cloudy. Lows in the upper 30s. West winds 10 to 15 mph with gusts to around 35 mph. .WEDNESDAY...Rain showers likely in the morning, then rain showers and slight chance of thunderstorms in the afternoon. Highs around 50. Northwest winds 5 to 15 mph. Chance of precipitation 90 percent. .WEDNESDAY NIGHT...Mostly cloudy. A 40 percent chance of rain showers in the evening. Lows in the lower 30s. Northwest winds 5 to 15 mph. .THURSDAY...Partly sunny. Highs around 60. Northwest winds 5 to 15 mph. .THURSDAY NIGHT...Partly cloudy. Lows in the upper 30s. Southwest winds 5 to 10 mph. .FRIDAY...Mostly sunny. A 20 percent chance of rain showers in the afternoon. Highs in the upper 60s. .FRIDAY NIGHT THROUGH MEMORIAL DAY...Partly cloudy. Lows 43 to 49. Highs 70 to 76. .MONDAY NIGHT...Mostly cloudy with a 40 percent chance of rain showers. Lows in the mid 40s. .TUESDAY...Partly sunny with a 50 percent chance of rain showers. Highs in the mid 60s. $$ MTZ308-201000- Southern High Plains- Including the cities of Bynum, Choteau, and Pendroy 1017 PM MDT Tue May 19 2026 .REST OF TONIGHT...Mostly cloudy. Lows in the upper 30s. Southwest winds 5 to 10 mph with gusts to around 30 mph. .WEDNESDAY...Chance of rain showers in the morning, then rain showers and chance of thunderstorms in the afternoon. Highs in the lower 50s. Northwest winds up to 15 mph. Chance of precipitation 90 percent. .WEDNESDAY NIGHT...Mostly cloudy with a 50 percent chance of rain showers in the evening, then partly cloudy after midnight. Lows in the mid 30s. Northwest winds up to 10 mph. .THURSDAY...Partly sunny. Highs around 60. Northwest winds 5 to 10 mph. .THURSDAY NIGHT...Partly cloudy. Lows in the upper 30s. West winds up to 10 mph. .FRIDAY AND FRIDAY NIGHT...Partly cloudy. Highs in the upper 60s. Lows in the lower 40s. .SATURDAY THROUGH SUNDAY NIGHT...Partly cloudy. Highs in the upper 70s. Lows around 50. .MEMORIAL DAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs in the upper 70s. .MONDAY NIGHT...Partly cloudy with a 20 percent chance of rain showers. Lows in the upper 40s. .TUESDAY...Cooler. Partly sunny. Chance of rain showers in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of precipitation 50 percent. $$ MTZ303-201000- Eastern Glacier, Western Toole, and Central Pondera- Including the cities of Cut Bank, Ethridge, and Santa Rita 1017 PM MDT Tue May 19 2026 .REST OF TONIGHT...Mostly cloudy. Lows in the upper 30s. West winds 10 to 15 mph. .WEDNESDAY...Mostly cloudy. Chance of rain showers in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the mid 50s. Northwest winds 10 to 15 mph. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy with slight chance of rain showers in the evening, then partly cloudy with slight chance of rain after midnight. Lows in the mid 30s. Northwest winds 5 to 15 mph. Chance of precipitation 20 percent. .THURSDAY...Partly sunny. Highs in the lower 60s. Northwest winds 5 to 15 mph. .THURSDAY NIGHT...Partly cloudy. Lows in the upper 30s. Northeast winds 5 to 10 mph shifting to the south after midnight. .FRIDAY AND FRIDAY NIGHT...Partly cloudy. Highs in the upper 60s. Lows in the lower 40s. .SATURDAY THROUGH SUNDAY...Partly cloudy. Highs in the upper 70s. Lows in the upper 40s. .SUNDAY NIGHT...Mostly cloudy. Lows in the upper 40s. .MEMORIAL DAY...Mostly sunny. Highs in the upper 70s. .MONDAY NIGHT AND TUESDAY...Breezy. Mostly cloudy. A 40 percent chance of rain showers. Lows in the mid 40s. Highs in the upper 60s. && TEMPERATURE / PRECIPITATION Cut Bank 38 54 33 62 / 10 70 20 10 $$ MTZ304-201000- Eastern Toole and Liberty- Including the cities of Devon, Shelby, Chester, Galata, Joplin, Lothair, and Whitlash 1017 PM MDT Tue May 19 2026 .REST OF TONIGHT...Mostly cloudy. A 20 percent chance of rain showers in the late evening and early morning. Lows in the upper 30s. West winds 5 to 10 mph with gusts to around 25 mph. .WEDNESDAY...Mostly cloudy. Chance of rain showers in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the mid 50s. Northwest winds 5 to 15 mph with gusts to around 30 mph. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy in the evening, then partly cloudy with a 20 percent chance of rain after midnight. Lows in the mid 30s. Northwest winds 5 to 15 mph. Gusts up to 30 mph in the evening. .THURSDAY...Partly sunny. Highs in the lower 60s. Northwest winds 5 to 15 mph. .THURSDAY NIGHT...Mostly clear. Lows in the upper 30s. North winds up to 10 mph shifting to the south after midnight. .FRIDAY AND FRIDAY NIGHT...Partly cloudy. Highs around 70. Lows in the mid 40s. .SATURDAY AND SATURDAY NIGHT...Partly cloudy. Highs in the mid 70s. Lows in the upper 40s. .SUNDAY...Sunny. Highs 77 to 83. .SUNDAY NIGHT...Partly cloudy. Lows around 50. .MEMORIAL DAY...Mostly sunny. A 20 percent chance of rain showers in the afternoon. Highs 77 to 83. .MONDAY NIGHT...Mostly cloudy with a 40 percent chance of rain showers. Lows in the upper 40s. .TUESDAY...Mostly sunny. Slight chance of rain showers in the morning, then chance of rain showers in the afternoon. Highs 69 to 75. Chance of showers 30 percent. $$ MTZ305-201000- Hill County- Including the city of Havre 1017 PM MDT Tue May 19 2026 .REST OF TONIGHT...Mostly cloudy. A 20 percent chance of rain showers in the late evening and early morning. Lows around 40. Southwest winds 5 to 10 mph. .WEDNESDAY...Mostly cloudy. 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. Northwest winds 10 to 15 mph. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows in the mid 30s. Northwest winds 5 to 15 mph. .THURSDAY...Partly sunny. Highs in the lower 60s. Northwest winds 5 to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows in the upper 30s. North winds up to 10 mph shifting to the south after midnight. .FRIDAY AND FRIDAY NIGHT...Partly cloudy. Highs in the lower 70s. Lows in the lower 40s. .SATURDAY...Sunny. Highs in the upper 70s. .SATURDAY NIGHT...Partly cloudy. Lows in the upper 40s. .SUNDAY...Sunny. Highs in the lower 80s. .SUNDAY NIGHT AND MEMORIAL DAY...Partly cloudy. Lows around 50. Highs in the mid 80s. .MONDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. A 20 percent chance of rain showers. Lows in the upper 40s. .TUESDAY...Mostly sunny. A 20 percent chance of rain showers in the afternoon. Highs in the upper 70s. && TEMPERATURE / PRECIPITATION Havre 39 61 34 65 / 20 50 10 20 $$ MTZ306-201000- Northern Blaine County- Including the cities of Chinook, Zurich, Harlem, Hogeland, and Fort Belknap 1017 PM MDT Tue May 19 2026 .REST OF TONIGHT...Mostly cloudy. A 20 percent chance of rain showers in the late evening and early morning. Lows in the upper 30s. Southwest winds up to 10 mph. .WEDNESDAY...Mostly cloudy. Chance of rain showers in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs around 60. Northwest winds 10 to 20 mph. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows in the mid 30s. Northwest winds 5 to 15 mph. .THURSDAY...Partly sunny. A 20 percent chance of rain showers in the afternoon. Highs in the lower 60s. Northwest winds 5 to 15 mph. .THURSDAY NIGHT...Partly cloudy. Lows in the upper 30s. Northwest winds up to 10 mph shifting to the east after midnight. .FRIDAY...Sunny. Highs around 70. .FRIDAY NIGHT...Partly cloudy. Lows in the lower 40s. .SATURDAY...Sunny. Highs in the upper 70s. .SATURDAY NIGHT...Partly cloudy. Lows in the upper 40s. .SUNDAY...Sunny. Highs in the lower 80s. .SUNDAY NIGHT AND MEMORIAL DAY...Partly cloudy. Lows in the upper 40s. Highs in the mid 80s. .MONDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers in the evening, then partly cloudy after midnight. Lows in the lower 50s. .TUESDAY...Breezy. Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs in the upper 70s. $$ MTZ309-201000- Eastern Pondera and Eastern Teton- Including the cities of Brady, Conrad, and Ledger 1017 PM MDT Tue May 19 2026 .REST OF TONIGHT...Mostly cloudy. Lows in the upper 30s. Southwest winds 5 to 10 mph. .WEDNESDAY...Cooler. 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. Northwest winds 5 to 15 mph. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers in the evening, then partly cloudy after midnight. Lows in the lower 30s. Northwest winds 5 to 10 mph. .THURSDAY...Partly sunny. Highs in the lower 60s. Northwest winds 5 to 10 mph. .THURSDAY NIGHT...Partly cloudy. Lows in the mid 30s. Northeast winds up to 5 mph shifting to the south after midnight. .FRIDAY AND FRIDAY NIGHT...Partly cloudy. Highs in the lower 70s. Lows in the lower 40s. .SATURDAY THROUGH SUNDAY...Partly cloudy. Highs in the upper 70s. Lows in the upper 40s. .SUNDAY NIGHT...Partly cloudy in the evening then becoming mostly cloudy. Lows in the upper 40s. .MEMORIAL DAY...Mostly sunny. Highs in the lower 80s. .MONDAY NIGHT...Mostly cloudy with a 30 percent chance of rain showers. Lows in the mid 40s. .TUESDAY...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 70s. Chance of precipitation 40 percent. $$ MTZ310-201000- Western and Central Chouteau County- Including the cities of Floweree, Carter, and Fort Benton 1017 PM MDT Tue May 19 2026 .REST OF TONIGHT...Mostly cloudy then becoming partly cloudy after midnight then becoming mostly cloudy. A 20 percent chance of rain showers in the late evening and early morning. Lows around 40. Southwest winds 5 to 10 mph. .WEDNESDAY...Mostly cloudy. Slight chance of rain showers in the morning, then rain showers likely and slight chance of thunderstorms in the afternoon. Highs in the upper 50s. Northwest winds 5 to 15 mph. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Cloudy with a 20 percent chance of rain showers in the evening, then partly cloudy after midnight. Lows in the mid 30s. West winds up to 10 mph. .THURSDAY...Partly sunny. Highs in the lower 60s. Northwest winds 5 to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows in the upper 30s. North winds up to 10 mph shifting to the south after midnight. .FRIDAY AND FRIDAY NIGHT...Partly cloudy. Highs in the lower 70s. Lows in the mid 40s. .SATURDAY...Sunny. Highs in the upper 70s. .SATURDAY NIGHT...Partly cloudy. Lows in the upper 40s. .SUNDAY...Sunny. Highs in the lower 80s. .SUNDAY NIGHT...Partly cloudy. Lows in the lower 50s. .MEMORIAL DAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs in the lower 80s. .MONDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers. Lows around 50. .TUESDAY...Mostly sunny. Slight chance of rain showers in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of precipitation 40 percent. $$ MTZ311-201000- Bears Paw Mountains and Southern Blaine- Including the city of Rocky Boy 1017 PM MDT Tue May 19 2026 .REST OF TONIGHT...Not as cool. Mostly cloudy. A 20 percent chance of rain showers in the late evening and early morning. Lows in the lower 40s. Southwest winds up to 10 mph. .WEDNESDAY...Mostly cloudy. Slight chance of rain showers in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 55 to 61. Northwest winds 5 to 15 mph. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy. Lows in the upper 30s. Northwest winds up to 10 mph. Gusts up to 25 mph in the evening. .THURSDAY...Partly sunny. A 20 percent chance of rain showers in the afternoon. Highs 57 to 63. Northwest winds 5 to 15 mph. .THURSDAY NIGHT...Mostly clear. Lows in the upper 30s. Northwest winds up to 10 mph shifting to the southwest after midnight. .FRIDAY...Warmer, sunny. Highs 66 to 72. .FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. .SATURDAY...Sunny. Highs 72 to 78. .SATURDAY NIGHT...Partly cloudy. Lows in the lower 50s. .SUNDAY...Sunny. Highs 77 to 83. .SUNDAY NIGHT...Partly cloudy. Lows in the lower 50s. .MEMORIAL DAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs 79 to 85. .MONDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers in the evening, then partly cloudy after midnight. Lows in the lower 50s. .TUESDAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs 74 to 80. $$ MTZ312-201000- Cascade County below 5000ft- Including the city of Great Falls 1017 PM MDT Tue May 19 2026 .REST OF TONIGHT...Partly cloudy in the late evening and early morning then becoming mostly cloudy. Lows around 40. Southwest winds 5 to 15 mph. .WEDNESDAY...Mostly cloudy. Chance of rain showers in the morning, then rain showers and chance of thunderstorms in the afternoon. Highs in the mid 50s. West winds 5 to 10 mph shifting to the north 5 to 15 mph in the afternoon. Chance of precipitation 90 percent. .WEDNESDAY NIGHT...Mostly cloudy. Chance of rain showers in the evening, then slight chance of rain after midnight. Lows in the mid 30s. Northwest winds up to 10 mph. Chance of precipitation 50 percent. .THURSDAY...Mostly cloudy. A 20 percent chance of rain showers in the morning. Highs around 60. Northwest winds up to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows in the upper 30s. Northwest winds up to 10 mph shifting to the south after midnight. .FRIDAY AND FRIDAY NIGHT...Partly cloudy. Highs in the upper 60s. Lows in the mid 40s. .SATURDAY...Sunny. Highs in the mid 70s. .SATURDAY NIGHT...Partly cloudy. Lows in the upper 40s. .SUNDAY...Sunny. Highs around 80. .SUNDAY NIGHT...Partly cloudy. Lows in the lower 50s. .MEMORIAL DAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs in the lower 80s. .MONDAY NIGHT...Mostly cloudy with slight chance of thunderstorms in the evening, then partly cloudy with slight chance of rain showers after midnight. Lows around 50. Chance of precipitation 20 percent. .TUESDAY...Partly sunny. Chance of rain showers in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of precipitation 50 percent. && TEMPERATURE / PRECIPITATION Great Falls Arpt 39 56 36 60 / 10 90 60 20 $$ MTZ313-201000- Judith Basin County and Judith Gap- Including the cities of Raynesford, Geyser, Stanford, Windham, Benchland, Hobson, and Moccasin 1017 PM MDT Tue May 19 2026 .REST OF TONIGHT...Mostly cloudy late in the evening then becoming partly cloudy. Lows in the upper 30s. Southwest winds 5 to 15 mph. .WEDNESDAY...Mostly cloudy. Slight chance of rain showers in the morning, then chance of thunderstorms in the afternoon. Highs in the mid 50s. Northwest winds 5 to 15 mph. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy. Chance of rain showers in the evening, then slight chance of rain after midnight. Lows in the mid 30s. Northwest winds 5 to 10 mph. Chance of precipitation 50 percent. .THURSDAY...Partly sunny. Slight chance of rain showers in the morning, then slight chance of thunderstorms in the afternoon. Highs in the mid 50s. Northwest winds 5 to 15 mph with gusts to around 30 mph. Chance of precipitation 20 percent. .THURSDAY NIGHT...Mostly clear. Lows in the mid 30s. Northwest winds up to 10 mph shifting to the southwest after midnight. .FRIDAY...Sunny. Highs in the mid 60s. .FRIDAY NIGHT...Partly cloudy. Lows in the lower 40s. .SATURDAY...Sunny. Highs in the lower 70s. .SATURDAY NIGHT...Partly cloudy. Lows in the upper 40s. .SUNDAY...Sunny. Highs in the upper 70s. .SUNDAY NIGHT...Partly cloudy. Lows around 50. .MEMORIAL DAY AND MONDAY NIGHT...Partly cloudy. A 20 percent chance of thunderstorms. Highs in the upper 70s. Lows around 50. .TUESDAY...Mostly 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 70s. Chance of precipitation 50 percent. $$ MTZ314-201000- Fergus County below 4500ft- Including the cities of Hilger and Lewistown 1017 PM MDT Tue May 19 2026 .REST OF TONIGHT...Mostly cloudy with a 20 percent chance of rain showers in the late evening and early morning, then partly cloudy early in the morning. Lows in the upper 30s. Southwest winds 5 to 10 mph. .WEDNESDAY...Mostly cloudy. Slight chance of rain showers in the morning, then chance of thunderstorms in the afternoon. Highs 56 to 62. West winds 5 to 15 mph. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy. A 50 percent chance of rain showers in the evening. Lows in the upper 30s. Northwest winds 5 to 10 mph. .THURSDAY...Mostly cloudy. A 20 percent chance of rain showers in the afternoon. Highs 56 to 62. Northwest winds 5 to 15 mph. .THURSDAY NIGHT...Mostly clear. Lows in the upper 30s. Northwest winds up to 10 mph shifting to the southwest after midnight. .FRIDAY...Warmer, sunny. Highs 65 to 71. .FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. .SATURDAY...Sunny. Highs in the mid 70s. .SATURDAY NIGHT...Partly cloudy. Lows around 50. .SUNDAY...Sunny. Highs around 80. .SUNDAY NIGHT...Partly cloudy. Lows in the lower 50s. .MEMORIAL DAY AND MONDAY NIGHT...Partly cloudy. A 20 percent chance of thunderstorms. Highs 80 to 86. Lows in the lower 50s. .TUESDAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs 74 to 80. && TEMPERATURE / PRECIPITATION Lewistown 35 56 33 55 / 10 80 60 40 $$ MTZ315-201000- Upper Blackfoot and MacDonald Pass- Including the cities of Marysville, Lincoln, Flesher Pass, and MacDonald Pass 1017 PM MDT Tue May 19 2026 .REST OF TONIGHT...Mostly cloudy. Lows in the mid 30s. West winds 5 to 10 mph. .WEDNESDAY...Mostly cloudy. Rain showers likely and chance of thunderstorms in the afternoon. Highs 47 to 57. West winds 5 to 15 mph. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Mostly cloudy. Rain showers, slight chance of thunderstorms and snow showers in the evening, then chance of rain and slight chance of snow after midnight. Snow accumulation up to 1 inch. Lows in the lower 30s. North winds up to 10 mph. Chance of precipitation 90 percent. .THURSDAY...Partly sunny. Highs 47 to 57. North winds up to 10 mph. .THURSDAY NIGHT...Partly cloudy. Lows in the mid 30s. Northwest winds up to 5 mph shifting to the southwest after midnight. .FRIDAY...Warmer. Mostly sunny. Highs 56 to 66. .FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows in the upper 30s. Highs 61 to 71. .SATURDAY NIGHT...Partly cloudy. Lows in the mid 40s. .SUNDAY...Sunny. Highs 65 to 75. .SUNDAY NIGHT...Partly cloudy. Lows in the mid 40s. .MEMORIAL DAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs 65 to 75. .MONDAY NIGHT...Partly cloudy. Slight chance of rain showers in the evening, then slight chance of rain showers and snow showers after midnight. Lows in the mid 40s. Chance of precipitation 20 percent. .TUESDAY...Partly sunny. Chance of rain showers and snow showers in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 56 to 66. Chance of precipitation 50 percent. $$ MTZ316-201000- Gates of the Mountains- Including the cities of Canyon Creek, Wolf Creek, and Craig 1017 PM MDT Tue May 19 2026 .REST OF TONIGHT...Partly cloudy late in the evening then becoming mostly cloudy. Lows in the upper 30s. Southwest winds up to 10 mph. .WEDNESDAY...Mostly cloudy. Slight chance of rain showers in the morning, then rain showers likely and chance of thunderstorms in the afternoon. Highs 51 to 59. Southwest winds up to 10 mph shifting to the northwest in the afternoon. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Mostly cloudy. Chance of rain showers in the evening, then slight chance of rain after midnight. Lows in the mid 30s. North winds up to 10 mph. Gusts up to 25 mph in the evening. Chance of precipitation 50 percent. .THURSDAY...Partly sunny. A 20 percent chance of rain showers in the morning. Highs 53 to 61. North winds up to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows in the upper 30s. North winds up to 10 mph shifting to the southwest after midnight. .FRIDAY AND FRIDAY NIGHT...Partly cloudy. Highs 62 to 70. Lows in the lower 40s. .SATURDAY...Sunny. Highs 68 to 76. .SATURDAY NIGHT...Partly cloudy. Lows in the upper 40s. .SUNDAY...Sunny. Highs 72 to 80. .SUNDAY NIGHT...Partly cloudy. Lows around 50. .MEMORIAL DAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs 72 to 80. .MONDAY NIGHT...Partly cloudy with a 20 percent chance of rain showers. Lows in the upper 40s. .TUESDAY...Partly sunny. Chance of rain showers in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 63 to 71. Chance of precipitation 50 percent. $$ MTZ317-201000- Little Belt and Highwood Mountains- Including the cities of Monarch, Neihart, and Kings Hill Pass 1017 PM MDT Tue May 19 2026 .REST OF TONIGHT...Partly cloudy in the late evening and early morning then becoming mostly cloudy. Lows 32 to 38. Southwest winds 5 to 10 mph with gusts to around 25 mph. .WEDNESDAY...Mostly cloudy. Slight chance of rain showers and snow showers in the morning, then rain showers with possible thunderstorms and snow showers in the afternoon. Snow accumulation up to 1 inch. Highs 45 to 53. West winds 5 to 15 mph. Chance of precipitation 90 percent. .WEDNESDAY NIGHT...Mostly cloudy. Slight chance of rain showers and snow showers in the evening, then slight chance of rain and snow after midnight. Lows 29 to 35. Northwest winds up to 10 mph with gusts to around 25 mph. Chance of precipitation 20 percent. .THURSDAY...Mostly cloudy. Slight 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 45 to 53. Northwest winds 5 to 15 mph with gusts to around 30 mph. Chance of precipitation 50 percent. .THURSDAY NIGHT...Mostly clear. Lows 29 to 37. Northwest winds up to 10 mph shifting to the southwest after midnight. .FRIDAY AND FRIDAY NIGHT...Partly cloudy. Highs 55 to 63. Lows 35 to 43. .SATURDAY...Warmer, sunny. Highs 62 to 70. .SATURDAY NIGHT...Partly cloudy. Lows 41 to 49. .SUNDAY...Sunny. Highs 66 to 74. .SUNDAY NIGHT...Partly cloudy. Lows 44 to 52. .MEMORIAL DAY AND MONDAY NIGHT...Partly cloudy. A 20 percent chance of thunderstorms. Highs 67 to 75. Lows 43 to 51. .TUESDAY...Partly sunny. Slight chance of rain showers and snow showers in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 60 to 68. Chance of precipitation 50 percent. $$ MTZ318-201000- Snowy and Judith Mountains- 1017 PM MDT Tue May 19 2026 .REST OF TONIGHT...Not as cool. Mostly cloudy late in the evening then becoming partly cloudy. Near steady temperature in the upper 30s. Southwest winds up to 10 mph with gusts to around 25 mph. .WEDNESDAY...Mostly cloudy. A 50 percent chance of thunderstorms in the afternoon. Highs 47 to 55. Northwest winds 5 to 15 mph with gusts to around 30 mph. .WEDNESDAY NIGHT...Cloudy. Chance of rain showers and snow showers in the evening, then chance of rain and snow after midnight. Lows in the lower 30s. Northwest winds 5 to 10 mph with gusts to around 25 mph. Chance of precipitation 50 percent. .THURSDAY...Mostly cloudy. Slight chance of rain showers and snow in the morning, then chance of rain showers, snow showers and slight chance of thunderstorms in the afternoon. Highs 46 to 54. Northwest winds 5 to 15 mph with gusts to around 30 mph. Chance of precipitation 50 percent. .THURSDAY NIGHT...Mostly clear. Lows in the lower 30s. Northwest winds 5 to 10 mph with gusts to around 25 mph shifting to the southwest after midnight. .FRIDAY...Not as cool. Sunny. Highs 56 to 64. .FRIDAY NIGHT...Partly cloudy. Lows around 40. .SATURDAY...Warmer, sunny. Highs 63 to 71. .SATURDAY NIGHT...Partly cloudy. Lows in the mid 40s. .SUNDAY...Sunny. Highs 68 to 76. .SUNDAY NIGHT...Partly cloudy. Lows 46 to 52. .MEMORIAL DAY AND MONDAY NIGHT...Partly cloudy. A 20 percent chance of thunderstorms. Highs 71 to 79. Lows in the upper 40s. .TUESDAY...Mostly sunny. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 64 to 72. Chance of precipitation 30 percent. $$ MTZ319-201000- Helena Valley- Including the city of Helena 1017 PM MDT Tue May 19 2026 .REST OF TONIGHT...Partly cloudy late in the evening then becoming mostly cloudy. Lows in the mid 30s. Southwest winds up to 10 mph. .WEDNESDAY...Mostly cloudy. Rain showers likely and chance of thunderstorms in the afternoon. Highs in the lower 60s. Southwest winds up to 5 mph shifting to the northwest 5 to 15 mph in the afternoon. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Mostly cloudy. Rain showers in the evening, then slight chance of rain after midnight. Lows in the mid 30s. Northwest winds 5 to 15 mph. Chance of precipitation 90 percent. .THURSDAY...Partly sunny. Highs in the lower 60s. Northwest winds 5 to 10 mph. .THURSDAY NIGHT...Partly cloudy. Lows in the mid 30s. North winds up to 5 mph shifting to the south after midnight. .FRIDAY AND FRIDAY NIGHT...Partly cloudy. Highs around 70. Lows around 40. .SATURDAY...Sunny. Highs in the mid 70s. .SATURDAY NIGHT...Partly cloudy. Lows in the mid 40s. .SUNDAY...Sunny. Highs around 80. .SUNDAY NIGHT...Partly cloudy. Lows in the mid 40s. .MEMORIAL DAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs in the lower 80s. .MONDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. A 20 percent chance of rain showers. Lows in the mid 40s. .TUESDAY...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 70s. Chance of precipitation 40 percent. && TEMPERATURE / PRECIPITATION Helena 38 63 36 61 / 10 60 90 20 $$ MTZ320-201000- Big Belt, Bridger and Castle Mountains- Including the cities of Trident, Maudlow, Battle Ridge Pass, Bozeman Pass, and Deep Creek Pass 1017 PM MDT Tue May 19 2026 .REST OF TONIGHT...Partly cloudy in the late evening and early morning then becoming mostly cloudy. Lows in the mid 30s. Southwest winds up to 10 mph with gusts to around 25 mph. .WEDNESDAY...Mostly cloudy. A 50 percent chance of thunderstorms in the afternoon. Highs 46 to 56. West winds 5 to 15 mph with gusts to around 30 mph. .WEDNESDAY NIGHT...Rain showers, slight chance of thunderstorms and snow showers in the evening, then chance of rain and snow after midnight. Snow accumulation up to 2 inches. Lows in the lower 30s. North winds 5 to 10 mph with gusts to around 30 mph. Chance of precipitation near 100 percent. .THURSDAY...Partly sunny. Slight chance of snow in the morning, then chance of rain showers, snow showers and slight chance of thunderstorms in the afternoon. Highs 44 to 54. North winds 5 to 15 mph with gusts to around 30 mph. Chance of precipitation 50 percent. .THURSDAY NIGHT...Mostly clear. Lows in the lower 30s. North winds up to 10 mph with gusts to around 25 mph shifting to the south after midnight. .FRIDAY AND FRIDAY NIGHT...Partly cloudy. Highs 53 to 63. Lows in the upper 30s. .SATURDAY...Warmer, sunny. Highs 61 to 71. .SATURDAY NIGHT...Partly cloudy. Lows in the mid 40s. .SUNDAY...Sunny. Highs 65 to 75. .SUNDAY NIGHT...Partly cloudy. Lows in the upper 40s. .MEMORIAL DAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs 67 to 77. .MONDAY NIGHT...Partly cloudy with a 20 percent chance of rain showers. Lows in the upper 40s. .TUESDAY...Mostly sunny. Slight chance of rain showers in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 59 to 69. Chance of precipitation 50 percent. $$ MTZ321-201000- Meagher County Valleys- Including the cities of Martinsdale, Checkerboard, Ringling, and White Sulphur Springs 1017 PM MDT Tue May 19 2026 .REST OF TONIGHT...Partly cloudy. Lows in the lower 30s. Southwest winds up to 5 mph. .WEDNESDAY...Mostly cloudy. A 50 percent chance of thunderstorms in the afternoon. Highs in the mid 50s. West winds 5 to 15 mph. .WEDNESDAY NIGHT...Cloudy. Rain showers likely and slight chance of thunderstorms in the evening, then chance of rain and snow after midnight. Little or no snow accumulation. Lows in the lower 30s. Northwest winds up to 10 mph with gusts to around 25 mph. Chance of precipitation 70 percent. .THURSDAY...Partly sunny. Slight chance of rain and snow in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the lower 50s. Northwest winds 5 to 15 mph. Chance of precipitation 40 percent. .THURSDAY NIGHT...Mostly clear. Lows in the lower 30s. North winds up to 10 mph with gusts to around 25 mph shifting to the south after midnight. .FRIDAY AND FRIDAY NIGHT...Partly cloudy. Highs in the lower 60s. Lows in the upper 30s. .SATURDAY...Sunny. Highs around 70. .SATURDAY NIGHT...Partly cloudy. Lows in the lower 40s. .SUNDAY...Sunny. Highs in the mid 70s. .SUNDAY NIGHT...Partly cloudy. Lows in the mid 40s. .MEMORIAL DAY AND MONDAY NIGHT...Partly cloudy. A 20 percent chance of thunderstorms. Highs in the mid 70s. Lows in the mid 40s. .TUESDAY...Partly sunny. Slight chance of rain showers and snow showers in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of precipitation 50 percent. $$ MTZ322-201000- Elkhorn and Boulder Mountains- Including the cities of Montana City, Clancy, Boulder, Corbin, Wickes, Elk Park Pass, and Homestake Pass 1017 PM MDT Tue May 19 2026 .REST OF TONIGHT...Mostly cloudy. Lows 30 to 36. West winds up to 10 mph. .WEDNESDAY...Partly sunny. Chance of thunderstorms and slight chance of snow showers in the afternoon. Highs 47 to 57. West winds up to 10 mph with gusts to around 25 mph. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy. Rain showers with possible snow showers and thunderstorms likely in the evening, then chance of snow and rain after midnight. Snow accumulation up to 2 inches. Snow level 6700 feet. Lows 29 to 35. North winds 5 to 10 mph with gusts to around 35 mph. Chance of precipitation 90 percent. .THURSDAY...Partly sunny. A 20 percent chance of snow in the morning. Highs 45 to 55. North winds 5 to 15 mph. Gusts up to 40 mph decreasing to 30 mph in the afternoon. .THURSDAY NIGHT...Partly cloudy. Lows 30 to 36. North winds up to 10 mph with gusts to around 25 mph shifting to the southwest after midnight. .FRIDAY AND FRIDAY NIGHT...Partly cloudy. Highs 54 to 64. Lows 36 to 42. .SATURDAY AND SATURDAY NIGHT...Partly cloudy. Highs 61 to 71. Lows 40 to 46. .SUNDAY AND SUNDAY NIGHT...Partly cloudy. Highs 66 to 76. Lows 43 to 49. .MEMORIAL DAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs 66 to 76. .MONDAY NIGHT...Mostly cloudy with slight chance of rain showers in the evening, then partly cloudy with slight chance of rain showers and snow showers after midnight. Lows 41 to 47. Chance of precipitation 20 percent. .TUESDAY...Partly sunny. Slight chance of rain showers and snow showers in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 57 to 67. Chance of precipitation 50 percent. $$ MTZ323-201000- Canyon Ferry Area- Including the cities of Toston, Townsend, and Winston 1017 PM MDT Tue May 19 2026 .REST OF TONIGHT...Partly cloudy late in the evening then becoming mostly cloudy. Lows in the upper 30s. North winds up to 5 mph shifting to the south after midnight. .WEDNESDAY...Partly sunny. A 50 percent chance of thunderstorms in the afternoon. Highs in the upper 50s. Southwest winds up to 5 mph shifting to the northwest with gusts to around 25 mph in the afternoon. .WEDNESDAY NIGHT...Mostly cloudy. Rain showers and slight chance of thunderstorms in the evening, then chance of rain after midnight. Lows in the upper 30s. North winds 10 to 15 mph with gusts to around 35 mph. Chance of precipitation 90 percent. .THURSDAY...Partly sunny. Highs in the upper 50s. North winds 5 to 20 mph. Gusts up to 40 mph decreasing to 30 mph in the afternoon. .THURSDAY NIGHT...Mostly clear. Lows in the upper 30s. North winds up to 10 mph shifting to the south after midnight. .FRIDAY AND FRIDAY NIGHT...Partly cloudy. Highs in the mid 60s. Lows in the lower 40s. .SATURDAY...Sunny. Highs in the mid 70s. .SATURDAY NIGHT THROUGH SUNDAY NIGHT...Partly cloudy. Lows in the upper 40s. Highs in the upper 70s. .MEMORIAL DAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs around 80. .MONDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. A 20 percent chance of rain showers. Lows in the upper 40s. .TUESDAY...Mostly 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 70s. Chance of precipitation 40 percent. $$ MTZ324-201000- Missouri Headwaters- Including the cities of Harrison, Three Forks, Willow Creek, Pony, and Whitehall 1017 PM MDT Tue May 19 2026 .REST OF TONIGHT...Mostly cloudy. Lows in the mid 30s. West winds up to 5 mph. .WEDNESDAY...Partly sunny. A 50 percent chance of thunderstorms in the afternoon. Highs around 60. West winds up to 10 mph. .WEDNESDAY NIGHT...Rain showers and slight chance of thunderstorms in the evening, then chance of rain after midnight. Lows in the mid 30s. North winds 5 to 15 mph with gusts to around 30 mph. Chance of precipitation near 100 percent. .THURSDAY...Mostly cloudy with a 50 percent chance of rain in the morning, then mostly sunny in the afternoon. Highs in the upper 50s. North winds 5 to 15 mph. Gusts up to 35 mph in the morning. .THURSDAY NIGHT...Partly cloudy. Lows in the mid 30s. Northeast winds up to 10 mph shifting to the southwest after midnight. .FRIDAY AND FRIDAY NIGHT...Partly cloudy. Highs in the mid 60s. Lows in the lower 40s. .SATURDAY...Sunny. Highs in the mid 70s. .SATURDAY NIGHT THROUGH MEMORIAL DAY...Partly cloudy. Lows in the upper 40s. Highs around 80. .MONDAY NIGHT...Partly cloudy. A 20 percent chance of rain showers in the evening. Lows in the upper 40s. .TUESDAY...Mostly sunny. Slight chance of rain showers in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of precipitation 40 percent. $$ MTZ325-201000- Madison River Valley- Including the cities of Cameron, Ennis, Jeffers, McAllister, and Norris 1017 PM MDT Tue May 19 2026 .REST OF TONIGHT...Mostly cloudy. Lows in the mid 30s. South winds up to 10 mph. .WEDNESDAY...Partly sunny. A 50 percent chance of thunderstorms in the afternoon. Highs in the upper 50s. South winds up to 10 mph shifting to the west in the afternoon. .WEDNESDAY NIGHT...Rain showers and slight chance of thunderstorms in the evening, then rain with snow likely after midnight. Little or no snow accumulation. Lows in the mid 30s. North winds 5 to 15 mph. Gusts up to 35 mph after midnight. Chance of precipitation near 100 percent. .THURSDAY...Breezy. Cloudy with rain and snow likely in the morning, then mostly sunny in the afternoon. Highs in the lower 50s. North winds 10 to 25 mph with gusts to around 40 mph. Chance of precipitation 70 percent. .THURSDAY NIGHT...Mostly clear. Lows in the lower 30s. Northeast winds 5 to 10 mph with gusts to around 25 mph shifting to the south after midnight. .FRIDAY AND FRIDAY NIGHT...Warmer. Partly cloudy. Highs in the mid 60s. Lows around 40. .SATURDAY...Sunny. Highs in the mid 70s. .SATURDAY NIGHT THROUGH SUNDAY NIGHT...Partly cloudy. Lows in the upper 40s. Highs in the upper 70s. .MEMORIAL DAY...Windy. Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs around 80. .MONDAY NIGHT...Breezy. Partly cloudy. A 20 percent chance of rain showers in the evening. Lows in the upper 40s. .TUESDAY...Breezy. Mostly 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 70s. Chance of precipitation 40 percent. $$ MTZ326-201000- Gallatin Valley- Including the cities of Bozeman and Gallatin Gateway 1017 PM MDT Tue May 19 2026 .REST OF TONIGHT...Mostly cloudy. Lows in the mid 30s. South winds up to 5 mph. .WEDNESDAY...Partly sunny. A 40 percent chance of thunderstorms in the afternoon. Highs around 60. Southwest winds up to 5 mph shifting to the northwest in the afternoon. .WEDNESDAY NIGHT...Rain showers and slight chance of thunderstorms in the evening, then rain likely after midnight. Lows in the mid 30s. Northwest winds up to 10 mph with gusts to around 30 mph. Chance of precipitation near 100 percent. .THURSDAY...Cloudy with chance of rain showers in the morning, then partly sunny with chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the mid 50s. North winds up to 10 mph with gusts to around 30 mph. Chance of precipitation 50 percent. .THURSDAY NIGHT...Mostly clear. Lows in the lower 30s. North winds up to 10 mph shifting to the southeast after midnight. .FRIDAY AND FRIDAY NIGHT...Partly cloudy. Highs in the mid 60s. Lows in the upper 30s. .SATURDAY...Sunny. Highs in the mid 70s. .SATURDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows in the mid 40s. .SUNDAY...Sunny. Highs in the upper 70s. .SUNDAY NIGHT AND MEMORIAL DAY...Partly cloudy. Lows in the upper 40s. Highs in the lower 80s. .MONDAY NIGHT...Partly cloudy. A 20 percent chance of rain showers in the evening. Lows in the upper 40s. .TUESDAY...Mostly sunny. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of precipitation 40 percent. && TEMPERATURE / PRECIPITATION Bozeman Airport 33 61 33 56 / 10 30 90 50 Bozeman MSU 36 60 35 54 / 10 30 90 70 $$ MTZ330-201000- Gallatin and Madison County Mountains and Centennial Mountains- Including the cities of Big Sky, West Yellowstone, Targhee Pass, and Raynolds Pass 1017 PM MDT Tue May 19 2026 .REST OF TONIGHT...Mostly cloudy. Lows 27 to 33. Southwest winds up to 10 mph. .WEDNESDAY...Partly sunny. Chance of snow showers and slight chance of thunderstorms in the afternoon. Highs 45 to 55. West winds up to 15 mph. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Rain showers, snow showers and slight chance of thunderstorms in the evening, then snow and rain after midnight. Snow accumulation up to 4 inches. Snow level 7500 feet. Lows 27 to 33. North winds 5 to 10 mph. Gusts up to 25 mph increasing to 35 mph after midnight. Chance of precipitation near 100 percent. .THURSDAY...Mostly cloudy. Chance of snow showers in the morning, then chance of snow showers and slight chance of thunderstorms in the afternoon. Highs 39 to 49. North winds 10 to 15 mph with gusts to around 45 mph. Chance of precipitation 50 percent. .THURSDAY NIGHT...Mostly clear. Lows 25 to 31. North winds 5 to 15 mph with gusts to around 35 mph shifting to the southeast after midnight. .FRIDAY AND FRIDAY NIGHT...Warmer. Partly cloudy. Highs 49 to 61. Lows 32 to 38. .SATURDAY...Warmer, sunny. Highs 56 to 68. .SATURDAY NIGHT THROUGH SUNDAY NIGHT...Partly cloudy. Lows 37 to 47. Highs 61 to 73. .MEMORIAL DAY...Breezy. Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs 63 to 75. .MONDAY NIGHT...Partly cloudy. A 20 percent chance of rain showers in the evening. Lows 40 to 46. .TUESDAY...Breezy. Mostly sunny. Slight chance of rain showers in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 56 to 68. Chance of precipitation 40 percent. && TEMPERATURE / PRECIPITATION West Yellowstone 26 56 28 51 / 10 20 90 40 $$ MTZ327-201000- Northwest Beaverhead County- Including the cities of Dewey, Wisdom, Wise River, Big Hole Pass, and Chief Joseph Pass 1017 PM MDT Tue May 19 2026 .REST OF TONIGHT...Partly cloudy late in the evening then becoming mostly cloudy. Lows around 30. West winds up to 10 mph. .WEDNESDAY...Mostly cloudy. Highs 46 to 56. West winds up to 15 mph with gusts to around 30 mph. .WEDNESDAY NIGHT...Mostly cloudy. Snow showers likely with possible showers and thunderstorms in the evening, then chance of snow and rain after midnight. Snow accumulation up to 1 inch. Snow level 7200 feet. Lows around 30. Northwest winds up to 15 mph with gusts to around 35 mph. Chance of precipitation 70 percent. .THURSDAY...Mostly sunny. Highs 46 to 56. North winds 5 to 15 mph. Gusts up to 45 mph decreasing to 30 mph in the afternoon. .THURSDAY NIGHT...Partly cloudy. Lows around 30. North winds 5 to 10 mph shifting to the east after midnight. Gusts up to 25 mph. .FRIDAY AND FRIDAY NIGHT...Partly cloudy. Highs 53 to 63. Lows in the mid 30s. .SATURDAY AND SATURDAY NIGHT...Partly cloudy. Highs 58 to 70. Lows in the upper 30s. .SUNDAY...Sunny. Highs 62 to 74. .SUNDAY NIGHT...Partly cloudy. Lows 38 to 44. .MEMORIAL DAY...Breezy. Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs 63 to 73. .MONDAY NIGHT...Partly cloudy. A 20 percent chance of rain showers and snow showers after midnight. Lows 37 to 43. .TUESDAY...Partly sunny. Slight chance of rain showers and snow showers in the morning, then chance of rain showers, snow showers and slight chance of thunderstorms in the afternoon. Highs 54 to 64. Chance of precipitation 50 percent. $$ MTZ328-201000- Beaverhead and Western Madison below 6000ft- Including the cities of Bannack, Dillon, Glen, and Waterloo 1017 PM MDT Tue May 19 2026 .REST OF TONIGHT...Mostly cloudy. Lows in the mid 30s. Northwest winds up to 10 mph shifting to the southwest after midnight. .WEDNESDAY...Partly sunny. Highs 56 to 62. West winds up to 15 mph. .WEDNESDAY NIGHT...Rain showers and slight chance of thunderstorms in the evening, then rain likely and chance of snow after midnight. Snow accumulation up to 1 inch. Lows in the mid 30s. North winds 5 to 15 mph with gusts to around 35 mph. Chance of precipitation near 100 percent. .THURSDAY...Breezy. Partly sunny. A 50 percent chance of rain and snow in the morning. Highs 53 to 59. North winds 10 to 25 mph with gusts to around 45 mph decreasing to 10 to 15 mph with gusts to around 35 mph in the afternoon. .THURSDAY NIGHT...Partly cloudy. Lows in the lower 30s. Northeast winds 5 to 10 mph with gusts to around 30 mph shifting to the southeast after midnight. .FRIDAY AND FRIDAY NIGHT...Partly cloudy. Highs 62 to 68. Lows in the upper 30s. .SATURDAY...Warmer, sunny. Highs 70 to 76. .SATURDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows in the mid 40s. .SUNDAY...Sunny. Highs 74 to 80. .SUNDAY NIGHT...Partly cloudy. Lows in the mid 40s. .MEMORIAL DAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs 74 to 80. .MONDAY NIGHT...Partly cloudy. Lows in the mid 40s. .TUESDAY...Breezy. Mostly sunny. Slight chance of rain showers in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 67 to 73. Chance of precipitation 40 percent. && TEMPERATURE / PRECIPITATION Dillon 34 61 33 58 / 10 10 80 30 $$ MTZ329-201000- Ruby Mountains and Southern Beaverhead Mountains- Including the city of Monida Pass 1017 PM MDT Tue May 19 2026 .REST OF TONIGHT...Mostly cloudy. Lows in the lower 30s. West winds up to 10 mph. .WEDNESDAY...Mostly sunny in the morning then becoming mostly cloudy. Highs 49 to 57. West winds up to 5 mph with gusts to around 20 mph increasing to 10 to 15 mph with gusts to around 30 mph in the afternoon. .WEDNESDAY NIGHT...Rain showers, snow showers and slight chance of thunderstorms in the evening, then rain likely and chance of snow after midnight. Snow accumulation up to 2 inches. Snow level 7600 feet. Lows in the lower 30s. Northwest winds 5 to 15 mph. Gusts up to 30 mph increasing to 40 mph after midnight. Chance of precipitation near 100 percent. .THURSDAY...Breezy. Mostly cloudy with a 50 percent chance of snow showers in the morning, then mostly sunny in the afternoon. Highs 45 to 53. North winds 10 to 25 mph with gusts to around 50 mph. .THURSDAY NIGHT...Mostly clear. Lows around 30. North winds 10 to 15 mph with gusts to around 35 mph becoming southeast up to 5 mph after midnight. .FRIDAY AND FRIDAY NIGHT...Partly cloudy. Highs 54 to 62. Lows in the mid 30s. .SATURDAY...Warmer, sunny. Highs 61 to 69. .SATURDAY NIGHT THROUGH MONDAY NIGHT...Windy. Partly cloudy. Lows in the lower 40s. Highs 65 to 74. .TUESDAY...Windy. Mostly sunny. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 59 to 67. Chance of precipitation 40 percent. $$