Catfish! I didn't go flyfishing and didn't bring a camera, but I went out Thursday afternoon with a buddy. We caught 2 dozen catfish from shore between 6 and 8 PM in 105 degree heat on the flats of a local lake. Once it got dark, the bite was over. Most were 2 to 5 pounds with a couple in the 7-10 lb. range. I love daytime catfishing in the dog days of summer.
So if you are getting cabin fever while hiding from the heatwave, consider going fishing! It's better than TV!