SXUS45 KMSO 221230
RECGPI

Recreation Forecast for Flathead Lake
National Weather Service Missoula MT
605 AM MDT Sat Aug 22 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.

.Today...Mostly cloudy in the morning, then mostly sunny with a
slight chance of rain early in the afternoon. Mostly sunny with a
slight chance of thunderstorms late in the afternoon. Some
thunderstorms may produce strong gusty winds late in the
afternoon. Highs around 80 . Variable winds up to 10 mph. Chance
of precipitation 20 percent. Waves less than 1 foot. 
.Tonight...Mostly cloudy with a slight chance of thunderstorms in
the evening, then partly cloudy with a chance of showers and a
slight chance of thunderstorms after midnight. Some thunderstorms
may produce strong gusty winds in the evening. Lows around 60 .
Variable winds up to 10 mph. Chance of precipitation 50 percent.
Waves less than 1 foot. 
.SUNDAY...Breezy, sunny. A slight chance of rain in the morning,
then a slight chance of thunderstorms in the afternoon. Highs in
the lower 70s. Variable winds up to 10 mph becoming southwest
15 to 20 mph in the afternoon. Chance of precipitation
20 percent. Waves around 1 foot...locally up to 2 feet. 
.SUNDAY NIGHT...Mostly clear. Lows in the mid 50s. West winds
around 15 mph in the evening becoming light. Waves around
1 foot...locally up to 2 feet. 
.MONDAY...Sunny. Highs in the lower 70s. Variable winds up to
10 mph. Waves less than 1 foot.