Lake Forest Park, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Lake Forest Park is known for the Burke-Gilman Trail and the Third Place Commons. The best time to visit Lake Forest Park, United States, is during the summer months of June to August, when the average air temperature is around 70-75°F and the water temperature in nearby lakes is approximately 65-70°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!