The hazy skies in the Chicago area are the visible sign of the poor air quality Thursday as smoke from Canadian wildfires ...

The National Weather Service has opted to extend an air quality alert in the Chicago area for another day.

While the haze slightly lifted Saturday morning, air quality levels are expected to worsen across the Chicago area over the ...

Wildfire smoke from Canada turned Chicago into one of the world’s most polluted metro areas as the Lollapalooza music ...

Chicago is under an Air Quality Alert today because of wildfire smoke. The air quality is considered "unhealthy," especially ...

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

CHICAGO (WLS) -- Air Quality Alerts remain in effect for the Chicago area Friday due to smoke from Canadian wildfires.

Smoke from Canadian wildfires is once again impacting air quality in the Chicago area, with air quality index readings ...

Chicago's Air Quality Alert continues due to Canadian wildfire smoke, with health advisories for sensitive groups amidst ...

Minneapolis faced severely degraded air quality, ranking among the worst globally due to smoke drifting from Canadian ...

Chicago air quality remains poor Friday thanks to Canadian wildfire smoke. An Air Quality Alert remains in place as events including Lollapalooza and Fiesta del Sol enter their second day.

As of 6 a.m. CT, Detroit was in the "hazardous" category while Chicago was in the "very unhealthy" category, according to tracker AirNow.gov. Detroit is under the NWS' air quality advisory until ...