FLUS45 KMSO 191827 AFPMSO Area Forecast for Montana west of the Continental Divide National Weather Service Missoula MT 1226 PM MDT Thu Mar 19 2026 MTZ001>007-043-200300- West of the Continental Divide- National Weather Service Missoula MT 1226 PM MDT Thu Mar 19 2026 .TODAY...Partly cloudy with a slight chance of rain. Highs in the 60s to lower 70s. .TONIGHT...Mostly cloudy with a chance of rain. Lows in the 40s. .FRIDAY...Partly cloudy with a chance of rain. Highs in the 60s to lower 70s. .SATURDAY...Mostly cloudy. Rain likely. Lows in the lower 40s. Highs in the 50s. .SUNDAY...Mostly clear. Lows in the upper 20s. 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. $$