July 31, 2015; 4:28 AM ET
Some heat relief is in store for western Pennsylvania over the next several days. more >
Cloudy and humid with a shower or thunderstorm possible
Rises at 6:26 AM with 13:55 of sunlight, then sets at 8:21 PM
Rises at 3:42 AM with 14:32 of moolight, then sets at 6:14 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.