Parts of Canada are seeing some of their most unhealthy air yet, and the smoke is likely to move over the United States again ...

A Chicago Air Quality Alert has been extended through Friday as smoke from Canada wildfires has pushed the AQI into unhealthy ...

Michigan's air, which has been tainted for several days by wafting smoke from Canadian wildfires, is expected to improve over ...

An air quality advisory is expected to remain in effect until noon June 6 as Michigan continues to see effects of Canadian ...

Smoke from Canadian wildfires began to worsen air quality in the eastern U.S. on Wednesday as several Midwestern states ...

Wildfire smoke was helping raise ozone to hazardous levels. No alerts have been issued, but the air quality may approach ...

Smoke from wildfires raging in Canada has drifted into the United States, affecting air quality as far south as Florida.

Online map tools and resources let you track the Canadian wildfires and monitor poor air-quality conditions, which are ...

In the U.S., smoke from the fires has already been detected drifting through Montana, North Dakota and northern Minnesota.

The smell of fire filled the air as thick smoke from wildfires in Canada blanketed part of the Midwest and created hazardous ...

The worst wildfires in decades are tearing through Saskatchewan, Canada, and at least two people have been killed in blazes ...

Air quality reached "unhealthy" levels in North Dakota and small swaths of Montana, Minnesota and South Dakota, according to ...