Canadian wildfire smoke in the Pittsburgh area will be thickening today and causing poor air quality throughout the region.

Thursday begins on a very warm and smoky note across most of Western Pennsylvania and Northern West Virginia. Wildfire smoke ...

Smoke from Canadian wildfires is once again blanketing the skies of Western Pennsylvania. More smoke is forecast to blow in Tuesday through early Wednesday.

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Smoke from wildfires raging in Canada has drifted into the United States, affecting air quality as far south as Florida.

Temperatures will jump into the upper 80s and humidity will also be on the rise, making it feel a few degrees hotter.

Wildfires in Canada have triggered widespread evacuations and hazardous air quality alerts across the northern United States.

Erie County's air quality index is expected to rise into the moderate zone, meaning people sensitive to air pollution are at ...

Fire officials from multiple departments worked to battle heavy smoke and flames after a home caught fire in Allegheny County ...

More toxic than other sources of pollution, wildfire smoke can cause a range of health effects, from mild coughs, itchy eyes and headaches to dizziness, wheezing, chest pains, asthma attacks, ...

Smoke from Canadian wildfires has carried another day of poor air quality south of the border to the American Midwest ...