Heat Advisory issued September 1 at 12:55PM CDT until September 5 at 8:00PM CDT by NWS St Louis MO
Issue date: 2026-09-01T17:55+00:00
* WHAT...Heat index values up to 106. * WHERE...Portions of south central, southwest, and west central Illinois and central, east central, northeast, and southeast Missouri. * WHEN...Until 8 PM CDT Saturday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
