FPUS65 KTFX 050033 AFPTFX Central and Southwest Montana Area Forecast National Weather Service Great Falls MT 633 PM MDT Mon May 4 2026 MTZ301>314-316>318-051200- Central Montana- National Weather Service Great Falls MT 633 PM MDT Mon May 4 2026 .REST OF TONIGHT...Mostly cloudy. Slight chance of snow showers. Lows 25 to 30. Gusts up to 35 mph in the evening. .TUESDAY...Mostly cloudy. Chance of snow showers through the day. Chance of rain showers in the afternoon. Highs 45 to 50...30 to 40 in the mountains. North winds 20 to 25 mph in the afternoon. .TUESDAY NIGHT...Mostly clear. Lows 20 to 25. .WEDNESDAY...Mostly clear. Much warmer. Highs 60 to 70. .THURSDAY...Mostly cloudy. Chance of rain showers. Lows 40 to 45. Highs 60 to 70. .FRIDAY...Mostly cloudy. Slight chance of rain. Lows 40 to 45. Highs 65 to 75. .SATURDAY...Mostly cloudy. Chance of rain. Lows 40 to 50. Highs 55 to 65. $$ MTZ315-319>330-051200- Southwest Montana- National Weather Service Great Falls MT 633 PM MDT Mon May 4 2026 .REST OF TONIGHT...Mostly cloudy. Slight chance of rain showers in the evening. Slight chance of snow showers through the night. Lows 30 to 35...20 to 30 in the mountains. .TUESDAY...Mostly cloudy. Chance of snow showers through the day. Highs 40 to 50...35 to 45 in the mountains. North winds 20 to 25 mph with gusts to 35 mph in the afternoon. .TUESDAY NIGHT...Mostly clear. Colder. Lows 15 to 25. North winds around 20 mph with gusts to 35 mph in the evening. .WEDNESDAY...Mostly clear. Warmer. Highs 55 to 65. .THURSDAY...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms. Lows 35 to 45. Highs 60 to 70. .FRIDAY...Mostly cloudy. Slight chance of rain. Lows 35 to 40. Highs 60 to 70. .SATURDAY...Mostly cloudy. Chance of rain showers, snow and slight chance of thunderstorms. Lows 35 to 45. Highs 50 to 60. $$