839
SXUS45 KMSO 202330
RECGPI

Recreation Forecast for Flathead Lake
National Weather Service Missoula MT
505 PM MDT Sun Sep 20 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.

.Tonight...Mostly clear. Lows in the mid 50s. Variable winds up
to 10 mph. Waves less than 1 foot.
.MONDAY...Sunny. Highs around 70 . Variable winds up to 10 mph.
Waves less than 1 foot.
.MONDAY NIGHT...Mostly clear. Lows in the mid 50s. Variable winds
up to 10 mph. Waves less than 1 foot.
.TUESDAY...Mostly sunny. Highs around 70 . Variable winds up to
10 mph. Waves less than 1 foot.