AccuWeather.com - Weather News | Arctic Cold to Reach East during Thanksgiving

Very cold air continues to build over western Canada and will make a move on the East Thanksgiving Day, lasting through the long holiday weekend.
....
It is possible places in the Appalachians will not climb above freezing for a two-day stretch from Black Friday to Saturday, while high temperatures over much of the I-95 corridor may struggle to surpass 40 degrees.