Hundreds of wildfires still burning in Canada are expected to undermine air quality across the Upper Midwest and Northeast ...

Tuesday stays warm and dry, with highs near 90 and a bit more humidity under partly cloudy skies in the Philadelphia region.

Smoke from Canadian wildfires continues to affect air quality across the Midwest, though Monday’s conditions were an ...

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

Smoke from Canadian wildfires is causing air quality concerns for millions of Americans in the Midwest and Northeast.

A map of smoke concentrations from the National Oceanic and Atmospheric Administration showed some light smoke present over ...

An air quality alert went into effect for the metropolitan area went out Monday at midnight and continues until midnight ...

Tuesday night is when the high pressure system shifts to the east, the NWS says. This should allow south winds to return, ...

An air quality alert is in effect for all of Massachusetts as smoke from Canadian wildfires descends into the Boston area.

Parts of the Midwest and Northeast are experiencing poor air quality Monday as smoke from Canadian wildfires drifts into the ...

Canadian wildfire smoke brought numerous air quality alerts to the Northeast on Aug. 4, including in multiple North Jersey ...

When combined with the Philly area’s warm, sunny weather, the incoming smoke stands to increase levels of ozone, the ...