Up to the minute Flathead Valley Weather
This weather module for Flathead Valley Weather displays data for Bigfork, MT which is located at the NE corner of the lake. At 35 miles in length, weather down in Polson can sometimes be much different than what’s happening in Bigfork. If you are using this forecast for boating purposes, I’d recommend that you also check Polson, MT.
The Flathead Valley is blessed with moderate Pacific influences and seasonal Canadian weather patterns.
Summer highs/lows average 80/47 degrees
Winter highs/lows average 32/16 degrees
Rainfall averages 20.43 inches annually
Snowfall averages 62 inches annually
Growing season is 108-115 days