National Weather Service officials issued an air quality alert set to expire at midnight Saturday for the Chicago and ...

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

Chicago had the worst air quality in the world for a few hours Thursday, thanks to smoke from Canadian wildfires.

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

Most of the Chicago area remains under an Air Quality Alert this weekend due to smoke from Canadian wildfires.

Smoke from Canadian wildfires hovered over several Midwestern states Saturday, bringing warnings of unhealthy air ...

The Air Quality Index (AQI), a system used to communicate how much pollution is in the air, is expected to reach the red or ...

Smoke from Canadian wildfires have continued to drift over the Midwest, blanketing the region with haze and poor air quality, prompting the National Weather Service (NWS) and local departments to ...

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