The Old Farmer's Almanac, which released its new edition, is predicting a brutal winter this year.
One meteorologist said Chicagoans are "absolutely right" thinking the summer is cooler than normal.
One Wicker Park resident said he hasn't switched on his air conditioning unit all summer.
A storm could roll through city before 7:30 p.m., but it appears to be weakening as it hits Illinois.
An earlier tornado watch for several counties, including Cook County, had been canceled by 6 a.m.
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