FourBee:
I know what you mean about the heat. I don't enjoy hunting on really hot (+100) days. Squirrels don't move much except real early anyways.
I usually do try and make a few trips in Aug. though. I like to know when squirrels start on the shagbark. It groups them up and you can get a few in pretty short order even if it is hot.
This is going to be a strange year methinks. I see lots of walnuts around here and they look pretty stunted from lack of moisture. If it rains some, they may make a nut yet...but it better get busy!
My heart goes out to the midwest farmers. They are plowing under corn all over and the soybeans look pitiful. All that work....