Excessive Heat in Northern Will County, Illinois

Excessive Heat June 21, 2025 · Northern Will County, Illinois

The wider storm

High temperatures reached the lower to middle 90s during the afternoon of the 21st. Coupled with dewpoints in the lower and middle 70s, peak heat indices were as high as around 105 degrees around northern Illinois.

Source: NOAA Storm Events Database, event 1272824. Narratives are written by the National Weather Service forecast office that issued the report.

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