Expires:202405032200;;551988 FPUS65 KTFX 031500 SFPMT State Forecast For Montana National Weather Service Great Falls MT 900 AM MDT Fri May 3 2024 MTZ315-319>330-032200- Southwest Montana- National Weather Service Great Falls MT 900 AM MDT Fri May 3 2024 .REST OF TODAY...Partly cloudy early in the morning then becoming mostly cloudy. Highs 45 to 50...35 to 45 in the mountains. .TONIGHT...Mostly clear. Lows 25 to 30. .SATURDAY...Increasing clouds. Warmer. Highs 55 to 65...45 to 55 in the mountains. Southeast winds 20 to 25 mph in the evening. .SUNDAY...Rain showers, snow showers and slight chance of thunderstorms. Lows 35 to 40. Highs 50 to 60. .MONDAY...Rain and snow showers. Lows 30 to 35. Highs 40 to 50. .TUESDAY...Mostly cloudy. Chance of snow showers. Lows 25 to 35. Highs 35 to 45. $$