FPUS65 KTFX 222200 SFPMT State Forecast For Montana National Weather Service Great Falls MT 400 PM MDT Sun Mar 22 2026 MTZ001>007-043-231000- West of the Continental Divide- National Weather Service Missoula MT 400 PM MDT Sun Mar 22 2026 .TONIGHT...Partly cloudy. Lows in the mid 20s to lower 30s. .MONDAY...Partly cloudy. Highs in the mid 50s to lower 60s. .MONDAY NIGHT...Mostly cloudy. Lows in the upper 30s. .TUESDAY...A chance of rain in the morning, then rain likely in the afternoon and evening. Highs in the 50s to lower 60s. .WEDNESDAY...Mostly cloudy with rain likely and a chance of snow. Lows in the lower 40s. Highs in the 50s. .THURSDAY...Partly cloudy. Lows in the upper 20s. Highs in the 40s. .FRIDAY...Mostly clear. Lows 19 to 26. Highs in the 50s. $$ MTZ301>314-316>318-231000- Central Montana- National Weather Service Great Falls MT 400 PM MDT Sun Mar 22 2026 .TONIGHT...Increasing clouds. Lows 25 to 35. .MONDAY...Mostly cloudy in the morning then clearing. Highs 50 to 60...45 to 55 in the mountains. .MONDAY NIGHT...Mostly cloudy. Lows 30 to 40. .TUESDAY...Mostly cloudy. Chance of rain and snow. Highs 45 to 55. .WEDNESDAY...Mostly cloudy. Chance of rain and snow. Lows 35 to 45. Highs 55 to 65. .THURSDAY...Partly cloudy. Colder. Slight chance of snow. Lows 20 to 25. Highs 35 to 45. .FRIDAY...Mostly clear. Lows 20 to 25. Highs 45 to 55. $$ MTZ315-319>330-231000- Southwest Montana- National Weather Service Great Falls MT 400 PM MDT Sun Mar 22 2026 .TONIGHT...Increasing clouds. Lows 30 to 35. .MONDAY...Mostly cloudy in the morning then clearing. Highs 55 to 65...45 to 55 in the mountains. .MONDAY NIGHT...Mostly cloudy. Lows 35 to 45...30 to 40 in the mountains. .TUESDAY...Mostly cloudy. Slight chance of rain. Highs 50 to 60. .WEDNESDAY...Mostly cloudy. Chance of rain and snow. Lows 40 to 45. Highs 55 to 65. .THURSDAY...Partly cloudy. Cooler. Chance of snow. Lows 25 to 30. Highs 40 to 50. .FRIDAY...Mostly clear. Lows 20 to 25. Highs 45 to 55. $$ MTZ016>027-059>062-231000- Northeast Montana- National Weather Service Glasgow MT 400 PM MDT Sun Mar 22 2026 .REST OF TODAY...Sunny. Highs near 50. .TONIGHT...Mostly clear. Lows near 30. .MONDAY...Mostly cloudy in the morning then clearing. Highs in the lower to mid 50s. .TUESDAY...Mostly cloudy with a chance of light rain. Highs in the 50s. Lows in the lower to mid 30s. .WEDNESDAY...Mostly cloudy with a slight chance of light rain and snow. Highs in the lower to mid 60s. Lows in the mid 30s to lower 40s. .THURSDAY...Partly cloudy with a slight chance of light snow. Highs in the mid 30s to lower 40s. Lows 19 to 24. $$ MTZ028>042-056>058-063>068-231000- South Central and Southeast Montana- National Weather Service Billings MT 400 PM MDT Sun Mar 22 2026 .TONIGHT...Partly cloudy. Lows in the upper 20s to the upper 30s. .MONDAY...Mostly sunny. Highs in the upper 50s to the upper 60s. .MONDAY NIGHT...Mostly cloudy. Lows in the mid 30s to lower 40s. .TUESDAY...Mostly cloudy. Highs in the lower 60s to the lower 70s. .TUESDAY NIGHT AND WEDNESDAY...Mostly cloudy. Slight chance of rain showers. Lows in the lower 40s to the lower 50s. Highs in the upper 60s to the upper 70s. .WEDNESDAY NIGHT...Mostly cloudy. Chance of rain showers and snow showers. Lows in the upper 20s to the upper 30s. .THURSDAY...Partly sunny. Slight chance of snow showers. Highs in the mid 40s to lower 50s. .THURSDAY NIGHT...Partly cloudy. Lows in the mid 20s. .FRIDAY...Sunny. Highs in the upper 40s to the upper 50s. $$