# Extreme Heat Warning: Winnebago; Boone; McHenry; Lake; Ogle; Lee; De Kalb; Kane; DuPage; La Salle; Kendall; Grundy; Kankakee; Livingston; Iroquois; Ford; Northern Will; Southern Will; Eastern Will; Lake; Porter; Newton; Jasper; Benton — retained record

> Retained us-gov-api record from us-gov-api:noaa-weather.

Canonical: https://highsignal.app/data/records/827170bdffdd412c

[← sources](https://highsignal.app/data)


source: [us-gov-api](https://highsignal.app/data/us-gov-api) (us-gov-api:noaa-weather)  published 2026-07-01 02:30 ingested 2026-07-01 09:53

[original source ↗](http://www.weather.gov/)

## extract

Extreme Heat Warning — Winnebago; Boone; McHenry; Lake; Ogle; Lee; De Kalb; Kane; DuPage; La Salle; Kendall; Grundy; Kankakee; Livingston; Iroquois; Ford; Northern Will; Southern Will; Eastern Will; Lake; Porter; Newton; Jasper; Benton
Severity: Severe. Certainty: Likely.
* WHAT...Dangerously hot conditions with peak afternoon heat index
values of 100 to 110 degrees.

* WHERE...Northern and central Illinois and northwest Indiana.

* WHEN...Until midnight CDT Thursday Night.

* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.

## retained text

The historical document was shared with another weather alert and cannot be attributed to this record. The original extract is preserved above; the exact alert link was not retained.