Du Quoin Emergency Management Agency

09/16/2026

* WHAT...Daily peak heat index values of 100 to 106. * WHERE...All of southern Illinois, southwest Indiana, western Kentucky, and southeast Missouri. * WHEN...Until 7 PM CDT /8 PM EDT/ Sunday. ...

09/16/2026

09/16/2026

* WHAT...Daily peak heat index values of 103 to 109 today and Thursday, then 100 to 105 Friday and Saturday. * WHERE...Portions of southern Illinois, southwest Indiana, western Kentucky, and ...

09/15/2026

* WHAT...Peak Daily Heat Index Values up to around 105 degrees. * WHERE...All of southern Illinois, southwest Indiana, western Kentucky, and southeast Missouri. * WHEN...Until 7 PM CDT /8 PM ...

09/14/2026

* WHAT...Daily peak heat index values up to 105 degrees. * WHERE...Portions of southern Illinois, southwest Indiana, western Kentucky, and southeast Missouri. * WHEN...From 11 AM CDT /noon EDT/ ...

09/13/2026

* WHAT...High temperatures in the mid to upper 90s, with stifling humidity creating Peak Heat Index values up to around 105 degrees. * WHERE...All of southern Illinois, southwest Indiana, western ...

09/13/2026

[Sunday, Sept. 13, 2026] Very warm conditions with small rain chances in parts of southeast Missouri and north of Interstate 64 are forecast today. High temperatures will reach the lower to middle 90s with peak heat index values around 100 degrees. If you have outdoor plans, prepare for impacts from the heat by staying hydrated, wearing cool, loose-fitting clothing and, taking frequent breaks in the shade or in an air-conditioned location.

09/11/2026

Chances of showers and storms will continue into Saturday, then dry conditions can be expected Saturday night through early Tuesday. Temperatures will be near seasonal today, then readings will warm back up to well above normal readings by Sunday, persisting through much of next week.