If you planning to travel to Illinois Beach State Park, Zion, Illinois, here is your 6-day travel weather forecast to make sure you have all the essentials needed during your stay. Start your day when the sunrises at 10:19 AM. The temperature feels like 56.3 with a humidity level of 55 so dress accordingly. Cloud coverage is 18 percent with visibility at 11 percent. Today’s UV index is 8, don’t forget the sunscreen if you need it! Today’s winds are traveling northeast at a speed of 7 MPH. At the end of the day don’t miss the sunset at 1:18 AM.