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 12:42 PM. The temperature feels like 50.35 with a humidity level of 96 so dress accordingly. Cloud coverage is 85 percent with visibility at 8 percent. Today’s UV index is 1, don’t forget the sunscreen if you need it! Today’s winds are traveling west at a speed of 9 MPH. At the end of the day don’t miss the sunset at 10:29 PM.