| 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.
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