Hettick, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Hettick, Illinois, United States, is not widely known for specific tourist attractions or proper nouns. The best time to travel to Hettick, United States, is in late spring (May), when the average air temperature is around 65°F (18°C) and water temperatures in nearby lakes or rivers are typically cooler, around 55°F (13°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!