Temperatures Plummet to -75 Degrees F in North Dakota as ‘Polar Vortex’ Starts: Report

Pedestrians cross an icy Chicago River on Madison St. near the Civic Opera House in Chicago, on Jan. 28, 2019. Rich Hein/Chicago Sun-Times via AP

Weather forecasters on Jan. 29 are warning tens of millions of Americans that the coldest weather in decades is set to hit Tuesday and Wednesday.

According to AccuWeather, the freeze began Tuesday morning the Upper Midwest with a temperature of 75 degrees below zero Fahrenheit in Grand Forks, North Dakota.