Heat Advisory issued September 17 at 10:05AM CDT until September 17 at 7:00PM CDT by NWS Lincoln IL
Issue date: 2026-09-17T15:05+00:00
* WHAT...Heat index values up to 103. * WHERE...Portions of central, east central, southeast, and west central Illinois. * WHEN...Until 7 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
