Heat Advisory issued July 21 at 4:12AM CDT until July 21 at 8:00PM CDT by NWS

...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 8 PM CDT THIS EVENING... * TEMPERATURE...High temperatures will reach the mid to upper 90s this afternoon and evening, with persistent high dewpoint readings producing heat index values from 100 to near 110 degrees.

from Current Watches, Warnings and Advisories for the United States Issued by the National Weather Service http://ift.tt/2gPwmiF