425
SXUS45 KMSO 121230
RECGPI

Recreation Forecast for Flathead Lake
National Weather Service Missoula MT
605 AM MDT Wed Aug 12 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...Partly sunny early in the morning then clearing. Patchy
smoke. Highs in the mid 70s. Variable winds up to 10 mph. Waves
less than 1 foot.
.Tonight...Breezy. Mostly clear with a slight chance of
thunderstorms in the evening, then mostly cloudy with a chance of
rain and a slight chance of thunderstorms after midnight. Lows in
the mid 50s. Northeast winds 15 to 20 mph with gusts to around
30 mph. Chance of precipitation 40 percent. Waves around 1 foot...
locally up to 2 feet.
.THURSDAY...Mostly cloudy with showers likely and a slight chance
of thunderstorms in the morning, then mostly sunny with a slight
chance of thunderstorms in the afternoon. Highs in the upper 60s.
Variable winds up to 10 mph. Chance of precipitation 70 percent.
Waves around 1 foot...locally up to 2 feet.
.THURSDAY NIGHT...Mostly cloudy. A chance of showers and a slight
chance of thunderstorms in the evening, then a slight chance of
rain after midnight. Lows in the mid 50s. North winds around
15 mph. Chance of precipitation 40 percent. Waves less than
1 foot.
.FRIDAY...Partly sunny. A chance of showers and a slight chance
of thunderstorms in the afternoon. Highs around 70 . Variable
winds up to 10 mph. Chance of precipitation 30 percent. Waves
less than 1 foot.