Excessive Heat Warning issued June 14 at 3:02AM CDT until June 15 at 8:00PM CDT by NWS

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM CDT WEDNESDAY... * WHAT...Dangerously hot conditions with heat index values up to 109. * WHERE...Portions of south central and southwest Illinois. Portions of east central and southeast Missouri. * WHEN...Until 8 PM CDT Wednesday.