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

source: us-gov-api (us-gov-api:noaa-weather)published 2026-07-01 02:30ingested 2026-07-01 09:53

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.

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The historical document was shared with another weather alert and cannot be attributed to this record.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.