Chicago is one of the cities "in the epicenter of the extreme cold," CNN meteorologist Dave Hennen said. It could remain below zero in the city from around noon today until around midday on Friday.
And tomorrow, Chicago will be colder than parts of Alaska and Antarctica.
- Chicago's high tomorrow is -13, and the city will see a low of -24. (Wind chill will make it feel as low as -48.)
- Meanwhile, Priestley Glacier, Antarctica, will see a high of 6 and a low of -7.
- And Barrow, Alaska, (which is also known as Utqiagvik) is expected to have a high of -6 and a low of -12.