Expires:202506012200;;531161 FPUS65 KTFX 011824 SFPMT State Forecast For Montana National Weather Service Great Falls MT 1224 PM MDT Sun Jun 1 2025 MTZ315-319>330-012200- Southwest Montana- National Weather Service Great Falls MT 1224 PM MDT Sun Jun 1 2025 .REST OF TODAY...Partly cloudy late in the morning. Slight chance of rain showers late in the morning, then rain showers likely and chance of thunderstorms in the afternoon. Highs 65 to 75...60 to 70 in the mountains. .TONIGHT...Mostly cloudy. Chance of showers and thunderstorms. Lows 40 to 45...35 to 40 in the mountains. .MONDAY...Mostly cloudy. Slight chance of snow showers. Chance of rain showers through the day. Slight chance of thunderstorms in the afternoon and evening. Highs 50 to 60...45 to 55 in the mountains. .TUESDAY...Partly cloudy. Slight chance of rain showers. Lows 30 to 35. Highs 50 to 60. .WEDNESDAY...Partly cloudy. Lows 35 to 40. Highs 55 to 65. .THURSDAY...Partly cloudy. Lows 35 to 45. Highs 60 to 70. $$