FPUS65 KTFX 060634 AFPTFX Central and Southwest Montana Area Forecast National Weather Service Great Falls MT 1233 AM MDT Wed May 6 2026 MTZ301>314-316>318-071200- Central Montana- National Weather Service Great Falls MT 1233 AM MDT Wed May 6 2026 .REST OF TONIGHT...Partly cloudy. Slight chance of showers and thunderstorms after midnight. Highs 65 to 75...50 to 60 in the mountains. Lows 30 to 45...25 to 40 in the mountains. .THURSDAY...Mostly cloudy. Chance of rain showers through the day. Slight chance of thunderstorms in the afternoon. Highs 60 to 70...50 to 60 in the mountains. .THURSDAY NIGHT...Partly cloudy. Lows 40 to 45...35 to 40 in the mountains. .FRIDAY...Mostly cloudy. Chance of rain showers. Highs 65 to 75. .SATURDAY...Mostly cloudy. Chance of rain showers. Lows 45 to 50. Highs 55 to 65. .SUNDAY...Partly cloudy. Lows 35 to 40. Highs 65 to 75. .MONDAY...Partly cloudy. Lows 45 to 50. Highs 70 to 80. $$ MTZ315-319>330-071200- Southwest Montana- National Weather Service Great Falls MT 1233 AM MDT Wed May 6 2026 .REST OF TONIGHT...Partly cloudy. Slight chance of showers and thunderstorms after midnight. Highs 60 to 70...50 to 60 in the mountains. Lows 25 to 40. .THURSDAY...Mostly cloudy in the morning then becoming partly cloudy. Chance of rain showers through the day. Slight chance of thunderstorms in the afternoon. Highs 60 to 70...50 to 60 in the mountains. Northwest winds around 20 mph in the afternoon. .THURSDAY NIGHT...Partly cloudy. Lows 35 to 40. .FRIDAY...Mostly cloudy. Highs 60 to 70. .SATURDAY...Partly cloudy. Lows 35 to 45. Highs 55 to 65. .SUNDAY...Partly cloudy. Lows 35 to 40. Highs 65 to 75. .MONDAY...Partly cloudy. Lows 40 to 45. Highs 70 to 80. $$