May 6, 2015; 4:30 AM ET
Following spotty showers and thunderstorms at midweek, warmth will return to the Philadelphia area by this weekend. more >
Periods of clouds and sunshine
Rises at 5:45 AM with 14:20 of sunlight, then sets at 8:05 PM
Rises at 4:09 AM with 13:14 of moolight, then sets at 5:23 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.