Canadian wildfire smoke will lend a hazy appearance to the sky, and high clouds blanket much of the Philadelphia region, ...

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

Poor air quality from the Canadian wildfires remains a concern on Tuesday for much of the Upper Midwest and Northeast regions ...

Temperatures remain in the upper eighties, with an air quality alert in effect until Midnight on Wednesday. The smoke and ...

Long Island will reach highs in the mid 80s on Tuesday, and see temperatures in the low 80s the rest of the week.

Midwest and Northeast regions in the U.S. are seeing poor air quality from Canadian wildfires. See the map showing where the ...

The fires have resulted in hazardous air-quality conditions across much of Canada and the northern U.S. They are continuing ...

Hazy skies descend over the New York City area again on Tuesday, re-upping some air quality alerts related to Canadian ...

The remaining 10 states affected by medium to heavy smoke from the wildfires are Colorado, New York, New Jersey, Connecticut, Pennsylvania, Vermont, Massachusetts, Indiana, New Hampshire, and ...

Smoke from hundreds of wildfires in Canada is lingering over the northern U.S., spreading across to roughly a dozen states from Wisconsin to Maine.

The air quality in several U.S. states is taking a hit as smoke floats over the border from the Canadian wildfires. Here's what to know.