SXUS45 KMSO 192330
RECGPI

Recreation Forecast for Flathead Lake
National Weather Service Missoula MT
505 PM MDT Tue May 19 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 cloudy. A chance of showers and a slight chance
of thunderstorms early in the evening, then a slight chance of
rain late in the evening. A slight chance of rain late in the
night. Lows in the mid 40s. Variable winds up to 10 mph. Chance
of precipitation 30 percent. Waves less than 1 foot. 
.WEDNESDAY...Mostly cloudy. A chance of rain in the morning, then
showers likely and a chance of thunderstorms in the afternoon.
Highs in the mid 50s. Variable winds up to 10 mph. Chance of
precipitation 70 percent. Waves less than 1 foot. 
.WEDNESDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms in the evening, then partly cloudy after
midnight. Lows in the lower 40s. Variable winds up to 10 mph.
Chance of precipitation 60 percent. Waves less than 1 foot. 
.THURSDAY...Sunny. Highs around 60 . Variable winds up to 10 mph.
Waves less than 1 foot.