108
SXUS45 KMSO 211230
RECGPI

Recreation Forecast for Flathead Lake
National Weather Service Missoula MT
605 AM MDT Fri Aug 21 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 sunny. Highs in the lower 80s. Variable winds up
to 10 mph. Waves less than 1 foot.
.Tonight...Mostly cloudy. Lows in the lower 60s. Variable winds
up to 10 mph. Waves less than 1 foot.
.SATURDAY...Mostly cloudy in the morning, then mostly sunny with
a 20 percent chance of thunderstorms in the afternoon. Highs
around 80 . Variable winds up to 10 mph. Waves less than 1 foot.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms in the evening, then partly cloudy
after midnight. Lows around 60 . Variable winds up to 10 mph.
Chance of precipitation 40 percent. Waves less than 1 foot.
.SUNDAY...Sunny. Highs in the mid 70s. Variable winds up to
10 mph becoming southwest around 15 mph with gusts to around
30 mph in the afternoon. Waves around 1 foot...locally up to
2 feet.