If you planning to travel to Arboretum of South Barrington, Barrington, 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 10:28 AM. The temperature feels like 53.3 with a humidity level of 83 so dress accordingly. Cloud coverage is 98 percent with visibility at 10.5 percent. Today’s UV index is 3, don’t forget the sunscreen if you need it! Today’s winds are traveling east-southeast at a speed of 9 MPH. At the end of the day don’t miss the sunset at 1:09 AM.