An excessive heat warning remains in effect until 8 tomorrow night for a large part of Siouxland. The northwest corner of Iowa and the Iowa Great Lakes Region is under a heat advisory. Temperatures will be in the mid 90’s for a large part of the region but the heat index will make it feel like 108 degrees. If you go south to Omaha, it’s expected to be 100 degrees but feel like 111. They will have an excessive heat warning through Saturday night. That also includes the communities of Onawa and