Smoke traveling from wildfires in Canada, North Dakota and Minnesota triggered an air quality warning in northern Wisconsin.

An air quality alert for central and southern Minnesota continues from Wednesday into Thursday until 11 p.m. The Minnesota ...

Smoke has made its way back into the northern tier of the U.S., prompting air quality alerts in North Dakota, Minnesota and ...

Canadian wildfire smoke will again choke Minnesota skies on Sunday, prompting a statewide air quality alert that will last most of the day. The air will be unhealthy for sensitive groups starting ...

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

The smell of fire filled the air as thick smoke from wildfires in Canada blanketed part of the Midwest and created hazardous ...

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

The U.S. Environmental Protection Agency warns that wildfire smoke contains dangerous pollutants in the form of fine ...

Canada is having another bad wildfire season, and more than 27,000 people in three provinces have been forced to evacuate.

It smells like a bonfire outside Tuesday due to another day of poor air quality caused by smoke from the wildfires in Canada.