If you planning to travel to Flathead Lake, Polson, here is your 6-day travel weather forecast to make sure you have all the essentials needed during your stay. Start your day when the sunrises at 2:26 PM. The temperature feels like 32.1 with a humidity level of 80 so dress accordingly. Cloud coverage is 76 percent with visibility at 12.4 percent. Today’s UV index is 2, don’t forget the sunscreen if you need it! Today’s winds are traveling south-southwest at a speed of 10 MPH. At the end of the day don’t miss the sunset at 12:12 AM.