FPUS65 KTFX 052200 SFPMT State Forecast For Montana National Weather Service Great Falls MT 400 PM MDT Tue May 5 2026 MTZ001>007-043-061000- West of the Continental Divide- National Weather Service Missoula MT 400 PM MDT Tue May 5 2026 .TONIGHT...Mostly clear. Lows in the upper 20s to mid 30s. .WEDNESDAY...Mostly sunny. Highs in the upper 60s to mid 70s. .WEDNESDAY NIGHT...Mostly cloudy. Lows in the 40s. .THURSDAY...Partly cloudy with a chance of rain. Highs in the upper 60s to mid 70s. .FRIDAY...Mostly cloudy. Lows in the upper 30s to mid 40s. Highs in the mid 60s to lower 70s. .SATURDAY...Mostly cloudy. Lows in the upper 30s to mid 40s. Highs in the 60s to lower 70s. .SUNDAY...Partly cloudy. Lows in the mid 30s to lower 40s. Highs in the 70s to lower 80s. $$ MTZ301>314-316>318-061000- Central Montana- National Weather Service Great Falls MT 400 PM MDT Tue May 5 2026 .TONIGHT...Mostly clear. Lows 20 to 25. .WEDNESDAY...Sunny. Highs 60 to 70...50 to 60 in the mountains. .WEDNESDAY NIGHT...Mostly cloudy. Not as cool. Chance of rain showers through the night. Lows 40 to 50...35 to 45 in the mountains. .THURSDAY...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms. Highs 60 to 70. .FRIDAY...Mostly cloudy. Chance of rain. Lows 40 to 45. Highs 65 to 75. .SATURDAY...Mostly cloudy. Chance of rain. Lows 40 to 50. Highs 55 to 65. .SUNDAY...Partly cloudy. Lows 35 to 40. Highs 65 to 75. $$ MTZ315-319>330-061000- Southwest Montana- National Weather Service Great Falls MT 400 PM MDT Tue May 5 2026 .TONIGHT...Mostly clear. Slight chance of snow showers in the evening. Lows 15 to 25. Gusts up to 40 mph in the evening. .WEDNESDAY...Sunny. Highs 55 to 65...45 to 55 in the mountains. .WEDNESDAY NIGHT...Increasing clouds. Slight chance of rain showers through the night. Lows 40 to 45...35 to 40 in the mountains. .THURSDAY...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms. Highs 55 to 65. .FRIDAY...Mostly cloudy. Lows 35 to 40. Highs 60 to 70. .SATURDAY...Mostly cloudy. Lows 35 to 45. Highs 50 to 60. .SUNDAY...Mostly clear. Lows 30 to 40. Highs 60 to 70. $$ MTZ016>027-059>062-061000- Northeast Montana- National Weather Service Glasgow MT 400 PM MDT Tue May 5 2026 .TONIGHT...Mostly clear. Lows in the lower to mid 20s. .WEDNESDAY...Sunny. Highs in the mid 50s to lower 60s. .WEDNESDAY NIGHT...Mostly cloudy. Lows in the 30s. .THURSDAY...Mostly cloudy. A slight chance of rain showers in the morning, then a chance of rain showers in the afternoon and evening. Highs in the mid to upper 60s. .FRIDAY...Partly cloudy. Highs near 70. Lows near 40. .SATURDAY...Mostly cloudy with a chance of rain showers. Highs near 60. Lows in the 40s. .SUNDAY...Partly cloudy. Highs in the mid 60s to lower 70s. Lows in the mid 30s to lower 40s. $$ MTZ028>042-056>058-063>068-061000- South Central and Southeast Montana- National Weather Service Billings MT 400 PM MDT Tue May 5 2026 .TONIGHT...Mostly clear. Lows in the 20s. .WEDNESDAY...Sunny. Highs in the lower 50s to the lower 60s. .WEDNESDAY NIGHT...Partly cloudy. Lows from the mid 40s west to the upper 20s east. .THURSDAY...Mostly cloudy. Showers and chance of thunderstorms west...and chance of showers and slight chance of thunderstorms east. Highs in the lower 60s to the lower 70s. .THURSDAY NIGHT...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms. Lows in the upper 30s to mid 40s. .FRIDAY...Mostly sunny. Slight chance of rain showers. Highs in the mid 60s to the mid 70s. .FRIDAY NIGHT...Mostly cloudy. Slight chance of rain showers. Lows in the lower 40s to the lower 50s. .SATURDAY...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms. Highs of around 60 to around 70. .SATURDAY NIGHT...Mostly cloudy. Slight chance of rain showers. Lows in the upper 30s to lower 40s. .SUNDAY...Mostly sunny. Highs in the mid 60s to the mid 70s. $$