Area Forecast Product
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
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656 FPUS65 KTFX 160134 AFPTFX Central and Southwest Montana Area Forecast National Weather Service Great Falls MT 733 PM MDT Tue Sep 15 2026 MTZ301>314-316>318-161200- Central Montana- National Weather Service Great Falls MT 733 PM MDT Tue Sep 15 2026 .REST OF TONIGHT...Mostly cloudy. Slight chance of rain in the evening. Chance of rain after midnight. Lows 40 to 45...35 to 40 in the mountains. .WEDNESDAY...Mostly cloudy in the morning then clearing. Patchy fog in the morning. Slight chance of rain through the day. Highs 55 to 65...50 to 60 in the mountains. .WEDNESDAY NIGHT...Mostly clear. Lows 40 to 45. .THURSDAY...Mostly clear. Highs 65 to 75. .FRIDAY...Rain showers likely and slight chance of thunderstorms. Lows around 50. Highs 65 to 75. .SATURDAY...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms. Lows 45 to 55. Highs 65 to 70. .SUNDAY...Mostly clear. Lows 45 to 50. Highs 65 to 75. $$ MTZ315-319>330-161200- Southwest Montana- National Weather Service Great Falls MT 733 PM MDT Tue Sep 15 2026 .REST OF TONIGHT...Partly cloudy. Lows 35 to 40. .WEDNESDAY...Sunny. Highs 65 to 70...55 to 65 in the mountains. .WEDNESDAY NIGHT...Increasing clouds. Lows 40 to 45. .THURSDAY...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms. Highs 65 to 75. .FRIDAY...Rain showers likely and slight chance of thunderstorms. Lows 45 to 50. Highs 60 to 70. .SATURDAY...Mostly cloudy. Chance of rain. Lows 40 to 45. Highs 60 to 70. .SUNDAY...Mostly clear. Lows 40 to 45. Highs 60 to 70. $$