854 SXUS45 KMSO 092330 RECGPI Recreation Forecast for Flathead Lake National Weather Service Missoula MT 505 PM MDT Thu Sep 9 2021 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...Partly cloudy in the evening then becoming mostly cloudy. Lows around 60 . Variable winds up to 10 mph. Waves less than 1 foot. .FRIDAY...Mostly sunny. A 20 percent chance of rain in the afternoon. Highs in the mid 70s. Variable winds up to 10 mph. Waves less than 1 foot. .FRIDAY NIGHT...Showers and a slight chance of thunderstorms. Lows in the mid 50s. Variable winds up to 10 mph. Chance of precipitation near 100 percent. Waves less than 1 foot. .SATURDAY...Cooler. Mostly cloudy. Showers likely and a slight chance of thunderstorms in the morning, then a chance of rain in the afternoon. Highs around 60 . South winds around 15 mph in the morning becoming light. Chance of precipitation 70 percent. Waves less than 1 foot.