Tonight will be a bit hazy, but clear and cool with lows in the 50s.Wildfire smoke looks to turn even thicker on Sunday. Poor ...

According to a ranking by IQ Air, a Swiss air-technology company, Chicago had the worst air quality in the world for a few ...

Environment Canada has issued special air quality statements for multiple regions across northeastern Ontario and beyond.

Smoke from Canadian wildfires hovered over several Midwestern states Saturday, bringing warnings of unhealthy air for at ...