FPUS65 KTFX 311630 SFPMT State Forecast For Montana National Weather Service Great Falls MT 1030 AM MDT Tue Mar 31 2026 MTZ001>007-043-312200- West of the Continental Divide- National Weather Service Missoula MT 1030 AM MDT Tue Mar 31 2026 .TODAY...Mostly cloudy with areas of rain and snow. Highs in the mid 40s to lower 50s. .TONIGHT...Mostly cloudy with a slight chance of rain. Lows in the upper 20s to mid 30s. .WEDNESDAY...Mostly cloudy. A chance of rain in the afternoon and evening. Highs in the 50s. .THURSDAY...Rain and snow likely. Lows in the 30s. Highs in the 40s. .FRIDAY...Mostly cloudy with a chance of snow. Lows in the mid 20s to lower 30s. Highs in the mid 40s to lower 50s. .SATURDAY...Partly cloudy. Lows in the 20s. Highs in the 50s. $$ MTZ301>314-316>318-312200- Central Montana- National Weather Service Great Falls MT 1030 AM MDT Tue Mar 31 2026 ...WINTER STORM WATCH IN EFFECT FROM THURSDAY MORNING THROUGH LATE THURSDAY NIGHT FOR Southern Rocky Mountain Front... ...WINTER STORM WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH FRIDAY MORNING FOR Cascade County below 5000ft...Judith Basin County and Judith Gap...Fergus County below 4500ft...Little Belt and Highwood Mountains...Snowy and Judith Mountains... .REST OF TODAY...Mostly cloudy. Chance of snow in the afternoon. Highs 35 to 45...30 to 40 in the mountains. Southeast winds 20 to 25 mph in the afternoon. .TONIGHT...Mostly cloudy. Lows 20 to 30. .WEDNESDAY...Increasing clouds. Chance of rain and snow in the afternoon and evening. Highs 50 to 55...40 to 50 in the mountains. .THURSDAY...Rain and snow. Lows 30 to 35. Highs 35 to 45. .FRIDAY...Mostly cloudy. Chance of snow. Lows 25 to 30. Highs 35 to 45. .SATURDAY...Partly cloudy. Lows in the mid 20s. Highs 45 to 55. $$ MTZ315-319>330-312200- Southwest Montana- National Weather Service Great Falls MT 1030 AM MDT Tue Mar 31 2026 ...WINTER STORM WATCH IN EFFECT FROM THURSDAY MORNING THROUGH LATE THURSDAY NIGHT FOR Upper Blackfoot and MacDonald Pass...Elkhorn and Boulder Mountains...Northwest Beaverhead County... ...WINTER STORM WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH FRIDAY MORNING FOR Big Belt, Bridger and Castle Mountains...Gallatin and Madison County Mountains and Centennial Mountains... .REST OF TODAY...Slight chance of snow late in the morning, then rain showers, snow showers likely and slight chance of thunderstorms in the afternoon. Highs 40 to 50...35 to 45 in the mountains. .TONIGHT...Mostly cloudy. Chance of rain and snow through the night. Lows 25 to 35. .WEDNESDAY...Mostly cloudy. Rain and snow. Highs 45 to 55...40 to 50 in the mountains. .THURSDAY...Snow and rain. Lows 30 to 35. Highs 35 to 45. .FRIDAY...Mostly cloudy. Chance of snow. Lows 20 to 30. Highs 35 to 45. .SATURDAY...Mostly clear. Lows 20 to 25. Highs 45 to 55. $$ MTZ016>027-059>062-312200- Northeast Montana- National Weather Service Glasgow MT 1030 AM MDT Tue Mar 31 2026 .TODAY...Partly cloudy. Highs in the mid 30s to lower 40s. .TONIGHT...Cloudy. A slight chance of light snow in the evening, then a chance of light snow after midnight. Lows in the 20s. .WEDNESDAY...Mostly cloudy. A slight chance of light snow in the morning. Highs in the 40s. .THURSDAY...Cloudy with a chance of light rain and snow. Highs in the lower to mid 40s. Lows near 30. .FRIDAY...Mostly cloudy with a chance of light snow. Highs in the mid to upper 30s. Lows in the mid to upper 20s. .SATURDAY...Partly cloudy. Highs in the mid 40s to lower 50s. Lows in the lower to mid 20s. $$ MTZ028>042-056>058-063>068-312200- South Central and Southeast Montana- National Weather Service Billings MT 1030 AM MDT Tue Mar 31 2026 ...Winter Weather Advisory in effect until Midnight MDT tonight for portions of South Central Montana... .REST OF TODAY...Mostly cloudy. Chance of snow. Highs in the mid 30s to upper 40s. .TONIGHT...Mostly cloudy. West, patchy dense fog, Chance of snow, Chance of snow. East, chance of snow showers. Lows in the mid 20s to lower 30s. .WEDNESDAY...Mostly cloudy. Slight chance of rain showers and snow showers. Highs in the mid 40s to the mid 50s. .WEDNESDAY NIGHT...Mostly cloudy. Chance of showers and snow showers west...and slight chance of showers and snow showers east. Lows in the mid 20s to upper 30s. .THURSDAY...Mostly cloudy. Patchy blowing snow west...and snow showers with possible showers and thunderstorms west...and chance of showers and slight chance of snow showers east. Highs in the upper 40s to the upper 50s. .THURSDAY NIGHT...Patchy blowing snow. Snow and rain. Lows in the upper 20s to lower 30s. .FRIDAY...Patchy blowing snow. Snow. Highs in the lower 30s to the lower 40s. .FRIDAY NIGHT...Mostly cloudy. Chance of snow. Lows in the 20s. .SATURDAY...Mostly sunny. Slight chance of snow showers. Highs in the mid 40s to upper 50s. $$