HIGH: 21
LOW: 10
* Coldest arctic surge since February. Highs 17 degrees colder than Wednesday and 17 degrees below normal!
* Sun and mixed clouds with some passing snow flurries possible.
* Moderate west to northwest winds 8 to 18 m.p.h. limit wind chills to single digits.
* Partly cloudy Thursday night, frigid temperatures. Lows ranging from single digits in the coldest outlying areas to the mid-teens along Lake Michigan.
DEC. 4 TEMPERATURES
Normal high/low: 38(degrees)/24(degrees)
Record high: 66(degrees) (1998)
Record low: 0(degrees) (1893)
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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.
IN THE WEB EDITION: For updated weather news, forecasts by ZIP code and local radar images, go to chicagotribune.com/weather or wgntv.com
