Polson, United States offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Polson, Montana, United States, is known for Flathead Lake, the largest natural freshwater lake in the western United States. The best time to travel to Polson, United States, is in July when the average air temperature is around 80°F (27°C) and the water temperature in Flathead Lake is approximately 68°F (20°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!
