Mendon, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Mendon, Illinois, United States, is known for its proximity to the scenic Siloam Springs State Park. The best time to travel to Mendon, United States, is in late spring (May to June) when the average air temperature is around 60-70°F and water temperature is approximately 50-60°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!
