SXUS45 KMSO 241230 RECGPI Recreation Forecast for Flathead Lake National Weather Service Missoula MT 606 AM MDT Fri Oct 24 2025 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. .Today...Mostly sunny. Highs around 60 . Variable winds up to 10 mph. Waves less than 1 foot. .Tonight...Mostly cloudy. Rain likely after midnight. Lows in the mid 40s. South winds around 15 mph. Chance of rain 60 percent. Waves around 1 foot...locally up to 2 feet. .SATURDAY...Cloudy. A chance of rain in the morning, then rain in the afternoon. Highs in the lower 50s. South winds around 15 mph with gusts to around 30 mph. Chance of rain 80 percent. Waves around 1 foot...locally up to 2 feet. .SATURDAY NIGHT...Breezy, rain. Lows around 40 . South winds 15 to 25 mph with gusts to around 30 mph. Chance of rain near 100 percent. Waves around 1 foot...locally up to 2 feet. .SUNDAY...Breezy. Rain likely. Highs in the mid 40s. Southwest winds 15 to 20 mph. Chance of rain 70 percent. Waves around 1 foot...locally up to 2 feet.