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

Rep. Calvin Callahan joined lawmakers from Iowa, Minnesota and North Dakota in filing a formal complaint against Canada over ...

As smoke begins to dissipate, Michigan's statewide advisories have ended, though some remain for Upper Peninsula and northern ...

Canadian wildfires are still causing some haze in Lower Hudson Valley skies Aug. 6. Will skies clear up any time soon?

The smoke drifting across the border contains fine particulates, pollution so small that it’s basically invisible to the ...

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

Massachusetts can expect hazy skies on Wednesday as smoke from Canadian wildfires continues to drift down the East Coast, ...

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

Plus, ABC News’ Chief Meteorologist Ginger Zee has the latest on the second earthquake in less than a week on the East coast.

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

Canadian wildfire smoke along with high clouds blanketing much of the Philadelphia region will lend a hazy appearance to the ...

As Canada grapples with one of its worst wildfire seasons on record, smoke from the blazes have prompted air quality alerts across the U.S.