We have another round of Canadian wildfire smoke to get through today, but it will also be accompanied by more uncomfortable ...

A heat advisory will be in effect for parts of the area this week as heat indices reach 100 degrees in parts of Delaware. See ...

If you’re in eastern Pennsylvania or New Jersey and noticed a haze in the sky Sunday morning, you weren’t imagining things.

Scattered storms are back for Sunday afternoon, primarily between 1 and 7 p.m. Any activity eyeing the tri-state through the ...

The alert from the state Department of Environmental Conservation, which is in effect from 10 a.m. to midnight, includes the ...

While it may improve a little bit later on today or tonight, I think the air quality could go back down again beginning Tuesday and perhaps into Wednesday,” AccuWeather Senior ...

Canadian wildfire smoke returns, bringing haze to Michigan. As of July 25, advisories are in effect for the U.P. and northern ...

The EPA's Air Quality Index can tell you whether breathing outside air can be harmful. Here's how to read the scale to plan ...