An Arctic air mass is set to sweep across the northern tier of the United States, bringing frigid temperatures that will impact a large portion of the country over the holiday weekend. The cold front is expected to start moving in on Wednesday and will gradually spread southward.
On Thanksgiving, Chicago is forecasted to struggle to reach the mid-30s, a temperature more typical of late December. Meanwhile, parts of North Dakota are expected to see temperatures barely reaching the teens, making it feel more like the heart of winter in January.
