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 10:55 AM. The temperature feels like 65.8 with a humidity level of 74 so dress accordingly. Cloud coverage is 65 percent with visibility at 13.9 percent. Today’s UV index is 2, don’t forget the sunscreen if you need it! Today’s winds are traveling east-southeast at a speed of 6 MPH. At the end of the day don’t miss the sunset at 12:57 AM.