551
SXUS45 KMSO 212330
RECGPI

Recreation Forecast for Flathead Lake
National Weather Service Missoula MT
505 PM MDT Tue Jul 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.

.Tonight...Partly cloudy then becoming mostly cloudy late in the
evening then becoming partly cloudy. Patchy smoke. Lows in the
lower 60s. Variable winds up to 10 mph. Waves less than 1 foot.
.WEDNESDAY...Mostly sunny. Patchy smoke through the day. A
20 percent chance of rain in the afternoon. Highs in the lower
80s. Variable winds up to 10 mph. Waves less than 1 foot.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 60s. Variable
winds up to 10 mph. Waves less than 1 foot.
.THURSDAY...Sunny. A 20 percent chance of thunderstorms in the
afternoon. Highs in the mid 80s. Variable winds up to 10 mph.
Waves less than 1 foot.