Excessive Heat Watch issued July 18 at 11:38AM CDT until July 22 at 8:00PM CDT by NWS

...EXCESSIVE HEAT WATCH FOR CENTRAL TO SOUTHERN IOWA WEDNESDAY THROUGH SATURDAY... .Beginning Wednesday, a prolonged period of 4 days of Heat Advisory conditions with apparent temperature values near to above 105 degrees are possible across central to southern Iowa. ...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM WEDNESDAY

from Current Watches, Warnings and Advisories for the United States Issued by the National Weather Service http://ift.tt/2u5WIBw