FPUS65 KTFX 062150 AFPTFX Central and Southwest Montana Area Forecast National Weather Service Great Falls MT 349 PM MDT Sat Jun 6 2026 MTZ301>314-316>318-071200- Central Montana- National Weather Service Great Falls MT 349 PM MDT Sat Jun 6 2026 .TONIGHT...Chance of rain showers in the evening. Slight chance of thunderstorms through the night. Rain showers likely after midnight. Lows 40 to 50...30 to 45 in the mountains. .SUNDAY...Mostly cloudy. Rain showers likely in the morning. Slight chance of thunderstorms through the day. Chance of rain in the afternoon. Highs 55 to 60...40 to 50 in the mountains. West winds 20 to 30 mph with gusts to 45 mph in the afternoon. .SUNDAY NIGHT...Partly cloudy. Slight chance of rain. Lows 35 to 40...30 to 35 in the mountains. Southwest winds 20 to 30 mph with gusts to 40 mph. .MONDAY...Partly cloudy. Warmer. Highs 65 to 75. .TUESDAY...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms. Lows 45 to 50. Highs 60 to 70. .WEDNESDAY...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms. Lows 40 to 45. Highs 55 to 65. .THURSDAY...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms. Lows 40 to 45. Highs 55 to 65. $$ MTZ315-319>330-071200- Southwest Montana- National Weather Service Great Falls MT 349 PM MDT Sat Jun 6 2026 .TONIGHT...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening, then chance of rain after midnight. Lows 35 to 45. Gusts up to 40 mph in the evening. .SUNDAY...Mostly cloudy. Rain and snow likely in the morning, then chance of rain showers, snow showers and slight chance of thunderstorms in the afternoon. Highs 50 to 60...45 to 55 in the mountains. West winds 20 to 25 mph in the afternoon. Gusts up to 40 mph. .SUNDAY NIGHT...Increasing clouds. Colder. Slight chance of rain. Lows 25 to 35. .MONDAY...Mostly cloudy. Highs 55 to 65. .TUESDAY...Rain showers and chance of thunderstorms. Lows 40 to 50. Highs 55 to 65. .WEDNESDAY...Mostly cloudy. Chance of rain showers, thunderstorms and snow. Lows 30 to 40. Highs 50 to 60. .THURSDAY...Partly cloudy. Chance of rain showers and slight chance of thunderstorms. Lows 30 to 35. Highs 50 to 60. $$