Concern for poor air quality in the greater Chicago area remains as the Illinois EPA extends its alert until Thursday night.

Chicago will see near-90 temperatures, high humidity, and poor air quality today, with storm chances returning tonight.

Wildfire smoke brings hazy skies and poor air quality to Chicago today, with hot and humid weather building into the weekend.

The public is advised to take precautions, especially those sensitive to polluted conditions, by limiting their time outside ...

The smoky air is predicted to reach New York City on Monday, and it could bring unhealthy air quality for sensitive groups.

According to the National Weather Service, the air quality alert remains in effect through midnight in parts of the Chicago ...

As Canadian wildfire smoke lingers in the skies, the Chicago area will soon be under an air quality alert, but the smoke ...

Wildfire smoke from Canada is a problem again in the Chicago area, with an air quality alert in place now extended through ...

CHICAGO (WLS) -- An air quality alert has been extended for part of the Chicago area through Thursday. The alert for McHenry, Lake, Kane, DuPage, Kendall, Grundy, Cook and Will counties in Illinois ...

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Chicago faces an air quality alert due to Canadian wildfire smoke and high ozone levels, with risks for sensitive groups.

However, Lake, Porter, Newton and Jasper counties in Indiana will be under another air quality alert all day Tuesday. The ...