The impending polar plunge will rival the frigid days from earlier this January for the coldest daytime highs and nighttime lows so far this winter. This does not include South Florida.

A blast of frigid air will grip most of the eastern two-thirds of the United States through Wednesday and could yield the lowest temperatures so far this winter in some communities

http://www.accuweather.com/en/weather-news/next-polar-plunge-could-be-wi...