Excessive Heat Warning issued July 07 at 3:31AM CDT until July 07 at 11:00PM CDT by NWS

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 11 PM CDT THIS EVENING... * WHAT...Dangerously hot conditions with heat index values up to 105. * WHERE...In Missouri, Jefferson MO, Saint Charles MO, Saint Louis City MO and Saint Louis MO Counties. In Illinois, Madison IL, Monroe IL and Saint Clair Counties.