HIGH: 80
LOW: 65
* Mostly cloudy early with a few scattered showers possible.
* Readings start out in the lower 60s and rise into the 70s as the sun breaks through later this morning.
* More clouds than sun in the afternoon; warm and rather humid as highs reach the lower 80s at some locations.
* Building clouds may develop into a few showers or even thunderstorms. Light south to southwest winds at 5 to 10 m.p.h.
* Partly cloudy and humid overnight with readings dropping into the 60s.
SEPT. 21 TEMPERATURES
Normal high/low: 72(degrees)/52(degrees)
Record high: 92(degrees) (1970)
Record low: 39(degrees) (1991)
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Weather Report is prepared by the WGN-TV Weather Center, where Tom Skilling is chief meteorologist. His forecasts can be seen Monday through Friday on WGN News at 11:30 a.m., 5:30 p.m. and 9 p.m.
WGN-TV meteorologists Steve Kahn, Richard Koeneman and Paul Dailey plus weather producer Bill Snyder contribute to this page.
Weather updates: Search for forecasts by ZIP code and radar images at chicagotribune.com/weather or wgntv.com
