Chicago: Up to 20(degrees) cooler, far less humid. Sunshine mixes with some puffy clouds. Incoming high and mid-level afternoon clouds filter the sunlight–but completely rainfree. Gusty NW winds, more northerly and ease later today. Partly cloudy, cooler Wednesday night. NE winds take hold. Lows: 52(degrees) far west, low 60s lakeshore.
HIGH: 74
LOW: 56
NEARLY 20(degrees) cooler
Note: Predicted high and low temperatures on the Tribune weather page are chronological–the “high” refers to the maximum reading expected during the day and the “low” is the minimum reading expected the following night.
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Tom Skilling is chief meteorologist at WGN-TV. His forecasts can be seen Monday through Friday on WGN-TV News at noon and 9 p.m.
WGN-TV meteorologists Steve Kahn, Richard Koeneman and Paul Dailey plus weather producer Bill Snyder contribute to this page.




