July 22, 2014; 12:17 PM ET
Cooler air will persist across the Chicago area into the weekend but temperatures will spike into next week. more >
Cooler and less humid with times of clouds and sun
Rises at 5:36 AM with 14:40 of sunlight, then sets at 8:16 PM
Rises at 2:55 AM with 14:49 of moolight, then sets at 5:44 PM
Sep 8, 2012; 5:00 AM ET With shorter days and colder nights in the fall and winter, some people develop seasonal affective disorder. When shopping for lightbulbs to treat the 'winter blues,'consider energy-efficient bulbs.