Air quality alerts have been issued across most of the Midwest, and hundreds of wildfires are burning across Canada.

Smoke from the more than 700 wildfires burning in Canada is continuing to blanket parts of the Midwest for a final day.

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

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

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

Minneapolis faced hazardous air quality, ranking second-worst globally due to Canadian wildfire smoke. Air quality alerts ...

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

When wildfires burn, the smoke can travel long distances and degrade air quality far away, which presents risks for those ...

Smoke from Canadian wildfires continues to choke the skies over the Upper Midwest this weekend, with the milky haze even ...

Though hazy and smokey skies still linger, the Chicago area will see lighter levels of smoke overhead as air quality begins ...

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

Smoke from raging wildfires in Canada is causing air quality alerts to blanket the Midwest. Lissette Nuñez is live from Chicago's Lollapalooza music festival.