Island Lake, United States offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Island Lake, Illinois, United States, is known for the Island Lake Recreation Area. The best time to travel to Island Lake, United States, is during the summer months of June to August, when the average air temperature is around 70-80°F and the water temperature is approximately 65-75°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!
