FLUS45 KMSO 202041 AFPMSO Area Forecast for Montana west of the Continental Divide National Weather Service Missoula MT 241 PM MDT Fri Mar 20 2026 MTZ001>007-043-211500- West of the Continental Divide- National Weather Service Missoula MT 241 PM MDT Fri Mar 20 2026 .TONIGHT...Mostly cloudy with areas of rain. Lows in the upper 30s to mid 40s. .SATURDAY...Mostly cloudy with a chance of rain. Highs in the 50s. .SATURDAY NIGHT...Mostly clear. Lows in the upper 20s. .SUNDAY...Mostly sunny in the morning then becoming partly cloudy. Highs in the upper 40s to mid 50s. .MONDAY...Mostly cloudy. Lows in the mid 20s to lower 30s. Highs in the 50s to lower 60s. .TUESDAY...Mostly cloudy with a chance of rain. Lows in the upper 20s to mid 30s. Highs in the mid 50s to lower 60s. .WEDNESDAY...Mostly cloudy with a chance of rain and snow. Lows in the mid 30s to lower 40s. Highs in the mid 50s to lower 60s. $$