Cold/Wind Chill in Williamson, Illinois

Cold/Wind Chill January 31, 2026 · Williamson, Illinois

The wider storm

An Arctic cold front moved through southern Illinois on the morning of the 30th, bringing cold temperatures down to the teens. Blustery northwest winds caused wind chills to fall around -5 to -7. Intervals of dangerous wind chills were variable across the region during the morning hours on the 30th and 31st with the far southern counties remaining above threshold.

Source: NOAA Storm Events Database, event 1310361. Narratives are written by the National Weather Service forecast office that issued the report.

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