587
SXUS45 KMSO 131230
RECGPI

Recreation Forecast for Flathead Lake
National Weather Service Missoula MT
605 AM MDT Sun Sep 13 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...Rain likely in the morning, then showers and a slight
chance of thunderstorms in the afternoon. Highs in the upper 50s.
Variable winds up to 10 mph. Chance of precipitation near
100 percent. Waves around 1 foot...locally up to 2 feet.
.Tonight...Breezy. Mostly cloudy. A chance of rain in the
evening, then rain after midnight. Lows around 50 . Variable
winds up to 10 mph becoming south 15 to 20 mph after midnight.
Chance of rain 90 percent. Waves around 1 foot...locally up to
2 feet.
.MONDAY...Mostly cloudy with a 50 percent chance of rain. Highs
in the upper 50s. South winds around 15 mph in the morning
becoming light. Waves around 1 foot...locally up to 2 feet.
.MONDAY NIGHT...Mostly cloudy. Lows around 50 . Variable winds up
to 10 mph. Waves less than 1 foot.
.TUESDAY...Mostly cloudy. Highs around 60 . Variable winds up to
10 mph. Waves less than 1 foot.