SXUS45 KMSO 082330 RECGPI Recreation Forecast for Flathead Lake National Weather Service Missoula MT 406 PM MST Sun Feb 8 2026 Note: The experimental wave height forecasts are representative of the mid lake waters and downwind shores. Wave heights may be significantly less on upwind shores. .Tonight...Breezy, cloudy. A chance of rain until early morning. A chance of snow after midnight, then rain and snow likely late in the night. No snow accumulation. Lows in the upper 30s. Variable winds up to 10 mph becoming west 15 to 20 mph after midnight. Chance of precipitation 70 percent. Waves around 1 foot...locally up to 2 feet. .MONDAY...Cloudy. Rain and snow likely in the morning, then a chance of rain and snow in the afternoon. No snow accumulation. Highs in the lower 40s. Southwest winds around 15 mph. Chance of precipitation 70 percent. Waves around 1 foot...locally up to 2 feet. .MONDAY NIGHT...Mostly cloudy. Lows in the mid 30s. Variable winds up to 10 mph. Waves around 1 foot...locally up to 2 feet. .TUESDAY...Mostly sunny. Highs in the lower 40s. Variable winds up to 10 mph. Waves less than 1 foot.