# Heat Advisory: Clinton; Washington; Randolph; Madison; St. Clair; Monroe; Boone; Moniteau; Cole; Osage; Callaway; Montgomery; Gasconade; Warren; St. Charles; Franklin; St. Louis; St. Louis City; Jefferson; Crawford; Washington; St. Francois; Ste. Genevieve; Iron; Madison; Reynolds — retained record

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

Canonical: https://highsignal.app/data/records/073372809ab74b4a

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


source: [us-gov-api](https://highsignal.app/data/us-gov-api) (us-gov-api:noaa-weather)  published 2026-07-21 02:48 ingested 2026-07-21 08:26

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

## extract

Heat Advisory — Clinton; Washington; Randolph; Madison; St. Clair; Monroe; Boone; Moniteau; Cole; Osage; Callaway; Montgomery; Gasconade; Warren; St. Charles; Franklin; St. Louis; St. Louis City; Jefferson; Crawford; Washington; St. Francois; Ste. Genevieve; Iron; Madison; Reynolds
Severity: Moderate. Certainty: Likely.
* WHAT...Heat index values of 100 to 110 degrees.

* WHERE...Portions of south central and southwest Illinois and
central, east central, and southeast Missouri.

* WHEN...Until 7 PM CDT this evening.

* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.

* ADDITIONAL DETAILS...This is the fourth straight day with heat
index values of 100 degrees or higher over parts of the area.

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The historical document was shared with another weather alert and cannot be attributed to this record.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