Extreme Heat Warning: Buchanan; Delaware; Benton; Linn; Jones; Iowa; Johnson; Cedar; Muscatine; Scott; Keokuk; Washington; Louisa; Jefferson; Henry; Des Moines; Van Buren; Lee; Rock Island; Mercer; Henderson; Warren; Hancock; McDonough; Scotland; Clark

source: us-gov-api (us-gov-api:noaa-weather)published 2026-07-27 03:39ingested 2026-07-27 09:50

extract

Extreme Heat Warning — Buchanan; Delaware; Benton; Linn; Jones; Iowa; Johnson; Cedar; Muscatine; Scott; Keokuk; Washington; Louisa; Jefferson; Henry; Des Moines; Van Buren; Lee; Rock Island; Mercer; Henderson; Warren; Hancock; McDonough; Scotland; Clark Severity: Severe. Certainty: Likely. * WHAT...A dangerous combination of oppressively hot and humid conditions with heat index values between 105 to 115 expected. * WHERE...Portions of northwest and west central Illinois, east central, northeast, and southeast Iowa, and northeast Missouri. * WHEN...Until 10 PM CDT this evening. * 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The historical document was shared with another weather alert and cannot be attributed to this record.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.