Canadian wildfire smoke has affected Wisconsin all week, prompting multiple air quality alert extensions from the DNR.

Smoke from ongoing Canadian wildfires has led to some of the worst air quality in the world across parts of the U.S.

More than 200 fires are burning in Canada, according to Natural Resources Canada. Of those, 59 fires are out of control. The ...

Smoke from Canadian wildfires is causing air quality concerns for millions of Americans in the Midwest and Northeast.

Wildfires burning in Canada were causing unhealthy air quality across parts of North America on Monday. Canadian wildfires ...

Canadian wildfire smoke is causing poor air quality today. Those with respiratory issues should limit outdoor time. Inland highs near 90 degrees, cooler along the coast.

Most of the air quality alerts pertain to "sensitive groups," including people with heart or lung disease and asthma. However, air quality in parts of northern Minnesota, Wisconsin and the Upper ...

Smoke from ongoing wildfires in Canada is impacting the air quality in states across the Midwest and Northeast of the U.S.

Canada is experiencing a terrible wildfire season with nearly 4,000 wildfires so far this year, close to a record pace.

However, Lake, Porter, Newton and Jasper counties in Indiana will be under another air quality alert all day Tuesday. The ...

An air quality advisory is in effect for New York City on Monday due to wildfire smoke from Canada, according to officials. Other areas that are affected by the advisory include ...

With hundreds of wildfires burning across Canada, smoke has drifted into the northern United States, lowering air quality across roughly a dozen states.