Saturday is likely to be the warmest day we see for the rest of 2024 as temperatures flirt with or exceed 90-degrees 

Ideal beach/boating weather. Lake Michigan expected to be calm with water temperatures significantly warmer than typical for this time of year. 

Temperatures soared above 90-degrees Friday at both airports, the 22nd and 24th time respectively of 2024 at O’Hare and Midway Airport. 

The unseasonable warmth of the past week—average temperature is nearly 77-degrees at Midway Airport since September 13th—the warmest on record there since observations began in 1928—a remarkable 9-degrees above normal. 

Cooler air arrives later this weekend into early next week but temperatures are still expected to post a modest surplus. Even cooler conditions expected in September’s final days and the open of October. 

Forecast average temperature anomaly through Sept. 25

Forecast average temp anomaly Sept. 26 through Oct. 2

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