September 4, 2015; 12:30 AM ET
A backdoor front will trim temperatures, haze and humidity around Philadelphia early this weekend before all three conditions build by early next week. more >
Rises at 6:38 AM with 12:41 of sunlight, then sets at 7:19 PM
Rises at 4:09 AM with 13:44 of moolight, then sets at 5:53 PM
Aug 30, 2012; 5:00 AM ET If you're longing to ski the Alps or swim in the Great Barrier Reef, you may be running out of time. A changing climate may beat you to the punch line. Valerie Smock has more.