Area Forecast Product
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
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579 FPUS65 KTFX 112138 AFPTFX Central and Southwest Montana Area Forecast National Weather Service Great Falls MT 337 PM MDT Mon May 11 2026 MTZ301>314-316>318-121200- Central Montana- National Weather Service Great Falls MT 337 PM MDT Mon May 11 2026 .TONIGHT...Mostly clear. Lows 40 to 45...35 to 40 in the mountains. .TUESDAY...Sunny. Highs 75 to 80...60 to 70 in the mountains. .TUESDAY NIGHT...Partly cloudy. Lows 45 to 50. .WEDNESDAY...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms. Highs 80 to 90. South winds 20 to 25 mph with gusts to 35 mph. .THURSDAY...Mostly cloudy. Cooler. Chance of rain showers. Lows 40 to 50. Highs 60 to 70. .FRIDAY...Mostly clear. Lows 35 to 45. Highs 60 to 70. .SATURDAY...Mostly cloudy. Slight chance of rain. Lows 35 to 45. Highs 55 to 65. $$ MTZ315-319>330-121200- Southwest Montana- National Weather Service Great Falls MT 337 PM MDT Mon May 11 2026 .TONIGHT...Mostly clear. Lows 35 to 45. .TUESDAY...Sunny. Highs 75 to 85...65 to 75 in the mountains. .TUESDAY NIGHT...Partly cloudy. Lows 45 to 50. .WEDNESDAY...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms. Highs 75 to 85. Southwest winds 20 to 25 mph with gusts to 50 mph. .THURSDAY...Mostly cloudy. Cooler. Chance of rain showers, snow showers and slight chance of thunderstorms. Lows 35 to 45. Highs 55 to 65. .FRIDAY...Mostly clear. Lows 35 to 40. Highs 55 to 65. .SATURDAY...Partly cloudy. Slight chance of rain and snow. Lows 35 to 40. Highs 50 to 60. $$