Heat Advisory issued June 25 at 9:43PM CDT until June 26 at 7:00PM CDT by NWS Lincoln IL

* WHAT…Heat index of 100 to 106 degrees from midday until early
evening.

* WHERE…All of central and southeast Illinois.

* WHEN…Until 7 PM CDT Thursday.

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

* ADDITIONAL DETAILS…Low temperatures will only slip into the mid
70s overnight, resulting in limited relief from the heat in
buildings without effective cooling.