Smoke billowing from wildfires is polluting the air, worsening air and reducing visibility throughout Manitoba this weekend.

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

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

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

Fine particle levels are expected to reach the purple air quality index category, which means it is considered “very ...

Wildfire smoke is also affecting central and northern Saskatchewan, with Environment Canada saying Buffalo Narrows, Sask., will see the air quality health index remain at the “very high risk” rating ...

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

Additional plumes of smoke from Canada's active wildfires prompt officials to issue a statewide air quality alert on July 14.

The current infrastructure also isn’t set up to fully account for the shifting behavior of wildfire smoke, which can travel ...

The extended forecast suggests unsettled weather midweek, with rain probabilities ranging from 30% to 60%. There is some ...

Risk designations can change regularly in the same community, Environment Canada says, so it's important to keep checking the ...