Area Forecast Product
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
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146 FPUS65 KTFX 102138 AFPTFX Central and Southwest Montana Area Forecast National Weather Service Great Falls MT 337 PM MDT Thu Sep 10 2026 MTZ301>314-316>318-111200- Central Montana- National Weather Service Great Falls MT 337 PM MDT Thu Sep 10 2026 .TONIGHT...Mostly cloudy. Slight chance of rain showers in the evening, then chance of rain showers after midnight. Lows 45 to 50...35 to 45 in the mountains. Northwest winds around 20 mph with gusts to 35 mph in the evening. .FRIDAY...Mostly cloudy. Chance of rain showers through the day. Highs 50 to 60...45 to 55 in the mountains. .FRIDAY NIGHT...Mostly cloudy. Chance of rain showers through the night. Lows 40 to 45...35 to 40 in the mountains. .SATURDAY...Mostly cloudy. Slight chance of rain showers. Highs 45 to 55. .SUNDAY...Rain showers and slight chance of thunderstorms. Lows 35 to 45. Highs 45 to 55. .MONDAY...Mostly cloudy. Chance of rain showers. Lows 35 to 45. Highs 50 to 60. .TUESDAY...Mostly cloudy. Lows 35 to 40. Highs 50 to 60. $$ MTZ315-319>330-111200- Southwest Montana- National Weather Service Great Falls MT 337 PM MDT Thu Sep 10 2026 .TONIGHT...Partly cloudy. Slight chance of rain showers after midnight. Lows 40 to 50. .FRIDAY...Partly cloudy. Slight chance of rain showers through the day. Slight chance of thunderstorms in the afternoon. Highs 60 to 70...55 to 65 in the mountains. .FRIDAY NIGHT...Mostly cloudy. Slight chance of rain showers. Lows 35 to 45. .SATURDAY...Mostly cloudy. Highs 55 to 65. .SUNDAY...Mostly cloudy. Chance of rain showers. Lows 40 to 45. Highs 50 to 60. .MONDAY...Partly cloudy. Lows 30 to 40. Highs 50 to 60. .TUESDAY...Partly cloudy. Lows 30 to 35. Highs 55 to 65. $$