FPUS65 KTFX 051833 AFPTFX Central and Southwest Montana Area Forecast National Weather Service Great Falls MT 1233 PM MDT Tue May 5 2026 MTZ301>314-316>318-060000- Central Montana- National Weather Service Great Falls MT 1233 PM MDT Tue May 5 2026 .REST OF TODAY...Mostly cloudy. Slight chance of rain and snow showers. Highs 45 to 50...35 to 45 in the mountains. North winds around 20 mph. .TONIGHT...Mostly clear. Lows 20 to 25. .WEDNESDAY...Sunny then becoming mostly cloudy. Much warmer. Highs 60 to 70...50 to 60 in the mountains. .THURSDAY...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms. Lows 40 to 45. Highs 60 to 70. .FRIDAY...Mostly cloudy. 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. $$ MTZ315-319>330-060000- Southwest Montana- National Weather Service Great Falls MT 1233 PM MDT Tue May 5 2026 .REST OF TODAY...Mostly cloudy. Slight chance of snow showers. Highs 45 to 55...35 to 45 in the mountains. North winds 20 to 25 mph with gusts to 40 mph. .TONIGHT...Mostly clear. Slight chance of snow showers. Lows 15 to 25. Gusts up to 40 mph in the evening. .WEDNESDAY...Sunny then becoming partly cloudy. Warmer. Highs 55 to 65...45 to 55 in the mountains. .THURSDAY...Mostly cloudy. Chance of rain showers. Lows 35 to 45. Highs 55 to 65. .FRIDAY...Mostly cloudy. Lows 35 to 40. Highs 60 to 70. .SATURDAY...Mostly cloudy. Lows 35 to 45. Highs 50 to 60. $$