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

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

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

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

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

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

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

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

The ongoing Canadian wildfires have reportedly blanketed a third of the United States, affecting millions, with the National ...

The Minnesota Pollution Control Agency (MPCA) has issued an air quality alert for a wide range of central and southern ...

An air quality alert has been issued for the entirety of Minnesota on Sunday as Canadian wildfire smoke continues to impact ...