Grayslake, United States offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Grayslake, Illinois, United States, is known for the College of Lake County and the Grayslake Heritage Center and Museum. The best time to travel to Grayslake, United States, is during late spring to early fall (May to September) when the average air temperature ranges from 60°F to 80°F, and water temperatures in nearby lakes are around 60°F to 75°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!
