Yahoo! News - Midwest Getting Its Summer in September
How weird is it? In Chicago, Wednesday marked the 14th day of the month with temperatures reaching 80 degrees, and Thursday was expected to be the 15th. In August there were 10.

It's looking like this will be only the fifth September in Chicago since records started being kept in the late 1800s that will end with an average high temperature above the average high for August, Snyder said.

I believe that is the same for us also. It was HOT yesterday.