Smoke from wildfires blazing across Canada is once again wafting over huge portions of the Midwest and worsening air quality, ...

The Iowa Department of Natural Resources reported Friday that air quality in Iowa will be at levels “unhealthy for sensitive ...

Smoke from wildfires blazing across Canada is once again wafting over huge portions of the U.S. Midwest and worsening air ...

The Midwest saw some of the worst air quality conditions in the world Thursday, and similar conditions are expected to ...

Chicago air quality remains in the top five worst in the world Friday with an Air Quality Alert in place from Canadian ...

Wildfire smoke from Canada reached the practice field of Green Bay but didn’t seem to affect any of the Packers who had ...

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

An air quality alert was issued by the New York State Department of Health on Saturday due to smoke from wildfires in Canada.

Environment Canada says smoke from forest fires is causing reduced visibility and poor air quality that is expected to ...

Wildfire smoke from the Prairies prompted special air quality statements and warnings across the country Saturday.

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.

The smoke is expected to remain over the northern and central Plains of the United States for the next couple of days, ...