Most of Minnesota and parts of Montana, North Dakota and Wisconsin were ranked “unhealthy” for air quality on a U.S. Environmental Protection Agency map.

Residents of three Midwestern states continue to be affected by smoke and ash drifting south from Canada's Manitoba province.

Much of the Upper Midwest on Saturday was dealing with swaths of unhealthy air because of drifting smoke from Canadian ...

A fire near the Grand Canyon National Park in Arizona has grown more than 20 times in size in 24 hours as an intensifying ...

The Upper Midwest is enveloped in smoke from Canadian wildfires, affecting air quality and outdoor activities. Minnesota, ...

The amount of land burned this year is on pace to be the most since 1994, as 100 blazes roared on Friday across the central ...

For the second time in a matter of weeks, a provincewide state of emergency has been declared due to the worsening wildfire situation. On Thursday, two communities began mandatory evacuations, forcing ...

Manitoba has declared its second state of emergency in two months as worsening wildfires force the evacuation of two more ...