Smoke from more than 100 wildfires blazing in Canada is expected to spread to impact air quality in more U.S. state.

An air quality map shows conditions improving in the U.S. on Friday as smoke from the Canadian wildfires subsides.

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

Mapped: Canada’s wildfires are impacting air quality in these US communities - Dangerous wildfire smoke has tinged skies over ...

Wildfires in Canada have forced thousands of residents to evacuate in three provinces, impacting air quality in the U.S. — ...

The Michigan Air Quality Division said as smoke from Canadian wildfires continues to threaten the upper Midwest, "monitors in ...

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

The Minnesota Pollution Control Agency (MPCA) has issued an air quality alert for all of Minnesota due to smoke from the ...

With 174 active wildfires burning across Canada, several U.S. states are under air quality alerts due to the traveling smoke ...

Parts of central Pennsylvania are under a code orange air quality alert, but the Midwest is seeing bigger air quality ...

While the smoke may cloud your vision of the sky or ruin a day at the beach on this week's warmest days of the season so far, ...

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