Heat Advisory issued June 24 at 3:15AM CDT until June 26 at 9:00PM CDT by NWS St Louis MO

* WHAT...Heat index values up to 103.

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

* WHEN...Until 9 PM CDT Thursday.

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