FPUS65 KTFX 120938 AFPTFX Central and Southwest Montana Area Forecast National Weather Service Great Falls MT 337 AM MDT Sun Apr 12 2026 MTZ301>314-316>318-130000- Central Montana- National Weather Service Great Falls MT 337 AM MDT Sun Apr 12 2026 .TODAY...Increasing clouds. Highs 50 to 60...45 to 55 in the mountains. .TONIGHT...Mostly cloudy. Chance of rain through the night. Slight chance of snow after midnight. Lows 30 to 40. .MONDAY...Mostly cloudy. Slight chance of snow in the morning. Rain through the day. Highs 50 to 60...40 to 50 in the mountains. .TUESDAY...Partly cloudy. Lows 35 to 40. Highs 55 to 65. .WEDNESDAY...Mostly cloudy. Chance of rain and snow. Lows 35 to 40. Highs 50 to 60. .THURSDAY...Mostly cloudy. Colder. Chance of snow. Lows 25 to 30. Highs 35 to 40. $$ MTZ315-319>330-130000- Southwest Montana- National Weather Service Great Falls MT 337 AM MDT Sun Apr 12 2026 .TODAY...Increasing clouds. Chance of rain showers, snow showers and slight chance of thunderstorms in the afternoon. Highs 50 to 60...45 to 55 in the mountains. .TONIGHT...Mostly cloudy. Chance of snow, rain showers and slight chance of thunderstorms through the night. Chance of rain after midnight. Lows 30 to 40...25 to 35 in the mountains. .MONDAY...Mostly cloudy. Snow and rain likely. Highs 45 to 55... 35 to 45 in the mountains. Southwest winds around 20 mph in the afternoon. .TUESDAY...Partly cloudy. Lows 30 to 35. Highs 45 to 55. .WEDNESDAY...Snow and rain. Lows 30 to 35. Highs 45 to 55. .THURSDAY...Colder, snow. Lows 20 to 30. Highs 30 to 40. $$