Multiple U.S. states and Canadian provinces are experiencing poor air quality from wildfire smoke. Here's where.

Wildfire smoke degrades air quality in swaths of Ontario, with Toronto ranking among the worst in the world on Monday.

Experts are urging everyone to be ready if wildfire smoke is in their region. Wearing a well-fitted N95 mask outside can be one of the ways to reduce risk.

Western winds have pushed smoke plumes from Prairie wildfires toward Quebec and Ontario, including Toronto and the GTA ...

NAPLES, Idaho — A fire in Naples has prompted evacuations after a log deck caught fire. According to the Boundary County ...

The Buhl Fire, which caused an alert to be issued on Sunday, has entered the northeast corner of Prince Albert National Park ...

Smoke from wildfires in Manitoba, a Western province facing its worst fire season in 30 years, has created hazardous air ...

More than 100 of the blazes are in the United States, including three dozen uncontained large fires, according to the ...

Unhealthy air has invaded Minnesota, Wisconsin and North Dakota early this week as a new round of wildfire smoke from Canada ...

The Dragon Bravo Fire has destroyed dozens of structures and a water treatment facility, and the White Sage Fire, located in ...

Those who evacuated from all other areas, besides Clover Lane residents, were advised that it is safe to return to their homes, although BCEM noted these areas will remain in a "SET" status throughout ...

As wildfires continue to threaten First Nations in northwestern Ontario, Pikangikum is facing another challenge: a ...