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Cloudy, breezy and colder
Times of clouds and sun
Intervals of clouds and sun
of sunlight, then sets at
of moolight, then sets at
While the next couple of days will be tranquil for the Chicago area, Christmas Eve could deliver enough snow to blanket the city. more >
Dec 20, 2012; 5:00 AM ET
The 540 line is often used by meteorologists to determine the chances of rain vs. snow.