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.

Quigley explained that the hazier air quality was due to wildfire smoke making its way southeast from Canada, as well as parts of North Dakota and Minnesota's Arrowhead region.Get daily updates on the Packers during the season.

The raging fires on Thursday are also expected to degrade air quality in parts of the Great Plains and Midwest. In New York, this week’s air quality issues are driven by a combination of smoke filtering across the eastern U.