What is the coldest day in Chicago? A look at numbers and how the upcoming cold compares

Source NBC Local
Original Load Date Jan. 21, 2026, 2:01 p.m.
Last Updated Jan. 21, 2026, 2:01 p.m.
Original URL https://www.nbcchicago.com/weather/what-is-the-coldest-day-in-chicago-a-look-at-numbers-and-how-the-upcoming-cold-compares/3879279/

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Temperatures will likely break records Friday morning as [ arctic air plunges south into Illinois ][1] Thursday night. The Chicago area could see [ wind chill values of -25 degrees to -40 degrees ][2] across northern Illinois. Stream NBC 5 for free, 24/7, wherever you are. [ ![Watch button][3] WA...