State scientists are calling Saturday an air quality action day with Canadian wildfire smoke moving in across New Hampshire.

New York was hit with an air quality alert Saturday as smoke from Canadian wildfires drifted across the state, pushing levels ...

Montreal had the worst air quality in the world on Saturday as smoke from wildfires in the Prairies drifted east. In addition ...

State officials from Maine to New York issued alerts for fine particulate matter, a toxic byproduct of wildfires that is small enough to be inhaled.

Smoke from Canadian wildfires pushed into New England Saturday, bringing hazy skies and unhealthy air quality to some spots, ...

Six of the top ten areas in the US with the worst air quality Saturday morning are in New England, according to the ...

"A lot of the prairies within Canada, the prairie provinces, entered the fire season already starting out in a drought, and ...

A Hazardous Weather Outlook is also in effect across the region. The National Weather Service issued the outlook because of ...

Canadian wildfire smoke will significantly impact air quality across Michigan on Friday, with unhealthy conditions expected ...

An air quality alert due to wildfire smoke from Canada has been expanded to include the Twin Cities metro and much of ...

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