Cook County is under a heat watch through Thursday evening. Temperatures could feel like 105-110 degrees Wednesday.

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

Canadian wildfire smoke lingers in Michigan. Officials issued an air quality advisory in southeast Michigan for July 15.

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

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

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

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

Canadian wildfire smoke no longer lingers in Michigan as of July 18. Southwest Michigan will experience unhealthy air for ...

Toronto and the GTA are under a heat wave and poor air quality warning issued by Environment Canada on July 14, 2025, due to ...

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

The weather agency has issued a special air quality statement for much of Manitoba, noting that air quality and visibility due to wildfire smoke can fluctuate over short distances.

The Chicago area recorded ozone levels of 156 late Monday afternoon. Levels above 100 are considered unhealthy. Residents ...