Forecasters say weak winds have left Canadian wildfire smoke to linger over the U.S. Stronger winds are expected to bring ...

PM2.5 — is expected to push the Air Quality Index over 100, reaching levels unhealthy for sensitive groups, including ...

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

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

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

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

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

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

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

Syracuse, N.Y. -- Upstate New Yorkers could inhale unhealthy air for days, New York state officials warned today. “We expect ...

Smoke from wildfires burning in Canada is filling the skies high above New Hampshire, triggering concerns about the air quality.

Heavy smoke from Canadian wildfires continues to affect air quality in western Massachusetts, posing health risks to ...