October 9, 2015; 4:11 AM ET
Chicago will experience a fluctuation in temperatures through the weekend. more >
Turning cloudy; a passing evening shower followed by a little rain late
Rises at 7:08 AM with 11:04 of sunlight, then sets at 6:12 PM
Rises at 10:25 AM with 10:14 of moolight, then sets at 8:39 PM
Nov 12, 2012; 5:00 AM ET The UV index has been around since the early 1990s. It was created to help you plan outdoor activities in hopes to limit overexposure to the sun. Jeannette Calle has more.