Maps show where new plumes of smoke will cause hazy skies through the end of the week. Low-level smoke is forecast to spread eastward Wednesday across the Appalachians and into the Mid-Atlantic and Northeast.

An air quality map shows conditions improving in the U.S. on Friday as smoke from the Canadian wildfires subsides.

A blue sky may be a rare sight across the Finger Lakes and much of the Northeast this summer. AccuWeather meteorologists say wildfire smoke from Canada is expected to repeatedly push into the region through at least August.