Skilling: Just as we warm up to spring, cold will return

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Chicago hasn’t reached 50 degrees on a weekend since the middle of January. That should change Saturday as winds from the south bring up warm, moist air.

The forecast for both Saturday and Easter Sunday is for highs in the low to middle 50s with a chance of light rain.
But the cold air isn’t behind us yet. A buckling jet stream from the northwest early next week will bring a cascade of cold air into the Midwest, returning below normal temperatures to the Chicago area.

It appears March 2013 will close without logging a single day in the 60s. That’s happened only 24 times since 1871. The latest it hit 70 here was May 7 in 1874. The city’s official observing site was downtown and much closer to the lake than the current site at O’Hare International Airport.

A dome of mild air aloft draped from northern Russia across the North Pole and into Greenland has been forcing colder than normal air into a good-sized part of the Lower 48 since February.

Copyright © 2013 Chicago Tribune Company, LLC

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