SXUS45 KMSO 032030 RECGPI Recreation Forecast for Flathead Lake National Weather Service Missoula MT 205 PM MDT Thu Jul 3 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...Breezy, sunny. Highs in the upper 70s. South winds 15 to 20 mph. Waves around 1 foot...locally up to 2 feet. .Tonight...Mostly clear. Lows in the mid 50s. Variable winds up to 10 mph. Waves around 1 foot...locally up to 2 feet. .Independence Day...Mostly sunny in the morning, then mostly cloudy with a 30 percent chance of rain in the afternoon. Highs in the lower 70s. Variable winds up to 10 mph. Waves less than 1 foot. .FRIDAY NIGHT...Cloudy. A chance of showers and a slight chance of thunderstorms in the evening, then a chance of rain after midnight. Lows in the mid 50s. Variable winds up to 10 mph. Chance of precipitation 50 percent. Waves less than 1 foot. .SATURDAY...Mostly cloudy. A chance of showers and a slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the mid 60s. Variable winds up to 10 mph. Chance of precipitation 50 percent. Waves less than 1 foot.