FPUS65 KTFX 060433 AFPTFX Central and Southwest Montana Area Forecast National Weather Service Great Falls MT 1033 PM MDT Tue May 5 2026 MTZ301>314-316>318-061200- Central Montana- National Weather Service Great Falls MT 1033 PM MDT Tue May 5 2026 .REST OF TONIGHT...Mostly clear. Lows 20 to 25. .WEDNESDAY...Sunny. Highs 60 to 70...50 to 60 in the mountains. .WEDNESDAY NIGHT...Mostly cloudy. Lows 40 to 50...35 to 45 in the mountains. .THURSDAY...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms. 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. .SUNDAY...Partly cloudy. Lows 35 to 40. Highs 65 to 75. $$ MTZ315-319>330-061200- Southwest Montana- National Weather Service Great Falls MT 1033 PM MDT Tue May 5 2026 .REST OF TONIGHT...Mostly clear. Lows 15 to 25. .WEDNESDAY...Sunny. Highs 55 to 65...45 to 55 in the mountains. .WEDNESDAY NIGHT...Increasing clouds. Lows 40 to 45...35 to 40 in the mountains. Gusts up to 35 mph in the evening. .THURSDAY...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms. Highs 55 to 65. .FRIDAY...Mostly cloudy. Lows 35 to 40. Highs 60 to 70. .SATURDAY...Mostly cloudy. Lows 35 to 45. Highs 50 to 60. .SUNDAY...Mostly clear. Lows 30 to 40. Highs 60 to 70. $$