Temperatures in the region will climb into the 80s and 90s, accompanied by reduced air quality due to wildfire smoke

Wildfire smoke was helping raise ozone to hazardous levels. No alerts have been issued, but the air quality may approach “code orange” levels again late Thursday afternoon in parts of the region, as it appears that the ozone factory will still be operating while the Canadian wildfire smoke persists in the skies over Philly.

Canadian wildfire smoke is here to stay in Western Pennsylvania — at least for this week. “Right now, it looks like it could be a decent portion of the week,” said Andrew Kienzle, a meteorologist at the National Weather Service in Moon.