Here's why the Canadian wildfire smoke is returning to the state and what to know about the latest air quality advisory.

Smoke from hundreds of wildfires in Canada has choked the skies over dozens of northern U.S. states in the Great Lakes and ...

The hazy air hovering over US cities, including Chicago and New York, this summer is reminding Americans of just how ...

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

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

West-Northwest Winds will continue to bring Smoke south from Canada into Minnesota Today and at times Air Quality in the Twin ...

PHILADELPHIA (WPVI) -- Smoke particles from Canadian wildfires are causing air quality concerns in the Philadelphia region on ...

Smoke drifting south from Canadian wildfires has made skies in Pennsylvania and other states hazy this week. The Pennsylvania ...

Air Quality will be Poor at times Today especially now until the early afternoon then some improvement in Air Quality between ...

It's time for change. Wisconsin could face the real possibility of being flanked by the effects of wildfires from both the ...

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

Here’s what public health officials recommend for people with heart or lung conditions, older adults, children and teens.