Via the WGN Weather Center Blog
The cloudy, chilly and rainy open to June here has been the talk of the town. So far this June is running more than 12 degrees cooler than last year, and the clouds, rain and chilly lake winds have been persistent. The average temperature at O'Hare International Airport through Friday has been only 59.5 degrees: nearly 7 degrees below normal and the coldest since records there began 50 years ago.
More bad weather is on the way Saturday with a cold rain expected to linger through the bulk of the morning. Rainfall could be heavy -- especially north of the city, which would be a reversal of Thursday's deluge that targeted the southern suburbs.