Environment Canada says smoke from forest fires that arrived Saturday afternoon could now linger until early Monday morning.

Ottawa and much of south and southeastern Ontario can expect poor air quality this weekend as wildfire smoke returns, Environment Canada says. The special air quality statement was issued shortly before 1:30 p.

Minnesotans will once again experience hazy conditions and poor air quality this weekend, as wildfires continue to burn across Canada, sending smoke south with the change in wind direction.