Smoke from Canadian wildfires has carried another day of poor air quality south of the border to the American Midwest.

Parts of the Upper Midwest were under air quality alerts on Tuesday. The New York City region is expected to be at risk on ...

You may notice a bit of a haze in the air this week. In part, it’s coming from central Canadian wildfire smoke. We’re keeping ...

Smoke from wildfires burning in three Canadian provinces is spreading into the U.S. Upper Midwest, stirring memories of the ...

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

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

Haze will take over New England skies late Tuesday and into Wednesday as more than 200 wildfires continue to rage across ...

Smoke spreading from wildfires in Canada was affecting air quality in multiple states on Tuesday.Parts of Minnesota, Iowa and ...

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

Wildfire smoke from a series of blazes burning in the Canadian prairie has drifted across New York, contributing to a series ...

Smoke from the wildfires burning out-of-control in the Canadian provinces of Saskatchewan and Manitoba is moving across the ...

This early-season smoke is a stark reminder that fire season is no longer confined to the West or wild areas, and more ...