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

Smoke from the Canadian wildfires continues to bring potentially dangerous air quality to parts of the northern U.S., with ...

Chicago air quality is at an unhealthy level for many, especially sensitive groups, as smoke from the Canadian wildfires is ...

An air quality advisory is in effect until 12 a.m., Saturday, June 7, as Michigan continues to see effects of Canadian ...

A gray haze from wildfire smoke could be seen in Cincinnati, and the entire state of Minnesota is under an air quality alert.

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

Haze from Canadian wildfires is seen over Lake Michigan as a person runs along the shoreline Monday in Chicago. Wildfires ...

Smoke from Canadian wildfires is beginning to worsen air quality in the eastern U.S. as several Midwestern states battle ...

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

MONTREAL — Poor air quality fuelled by wildfires burning across the Prairies left a large swath of the country enveloped in a ...

Environment Canada says wildfire smoke is affecting air quality in northeastern British Columbia. The agency issued special air quality statements Saturday for Fort Nelson and the Peace River region, ...

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