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

In the U.S., smoke from Canadian wildfires was detected drifting through Montana, North Dakota and northern Minnesota.

Canadian Wildfires continued to burn, and smoke from the Canada fires could be affecting U.S. air quality in several states.

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

A series of wildfires burning across central Canada sent smoke billowing into the U.S. over the weekend, with few signs that ...

Wildfires in Canada have triggered widespread evacuations and hazardous air quality alerts across the northern United States.

Smoke from more than 100 wildfires blazing in Canada is expected to spread and impact air quality index in Minnesota.

Canadian wildfires are raising air quality concerns in several states, including the Dakotas, Minnesota and Wisconsin.

Part of the mid- and lower Hudson Valley is under an advisory for ground-level ozone pollution, which is expected to worsen ...

Iowa issues air quality alert, wildfire smoke creates 'unhealthy' conditions ...

At 3:45 p.m. on Tuesday, the National Weather Service reported an air quality alert in effect until Thursday at midnight for ...

The Wisconsin Department of Natural Resources issuing an advisory to Wisconsinites, asking people to limit their time ...