FLUS45 KMSO 122002 AFPMSO Area Forecast for Montana west of the Continental Divide National Weather Service Missoula MT 101 PM MST Fri Dec 12 2025 MTZ001>007-043-131500- West of the Continental Divide- National Weather Service Missoula MT 101 PM MST Fri Dec 12 2025 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM MST SATURDAY for West Glacier Region... .TONIGHT...Mostly cloudy with areas of rain. Patchy fog. Lows in the 30s. .SATURDAY...Partly cloudy. Patchy fog. Highs in the mid 40s to lower 50s. .SATURDAY NIGHT...Partly cloudy. Lows in the mid 20s to lower 30s. .SUNDAY...Partly cloudy. Highs in the mid 40s to lower 50s. .MONDAY...Rain likely. Lows in the upper 20s to mid 30s. Highs in the mid 40s to lower 50s. .TUESDAY...Rain likely and a chance of snow. Lows in the upper 30s. Highs in the 40s to lower 50s. .WEDNESDAY...Rain and snow likely. Lows in the mid 20s to lower 30s. Highs in the upper 30s. $$