I was on Lake Conway this past Saturday, According to my Lowrance HDS 7, The water temp at the surface at 2:00 in the afternoon was 99.5 degrees. The other graph I have is also a Lowrance, Elite 7 DI chirp, I turned them both on and the second graph said 99.6 degrees. The fish had to be about half boiled. When its that hot their appetites fall off considerably. When a ole gar wont even pop at a jig its to hot.