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 10:16 AM. The temperature feels like 63.25 with a humidity level of 46 so dress accordingly. Cloud coverage is 0 percent with visibility at 6 percent. Today’s UV index is 10, don’t forget the sunscreen if you need it! Today’s winds are traveling west at a speed of 6 MPH. At the end of the day don’t miss the sunset at 1:26 AM.