I think you may have been poured on. My advice is a bit late this time around, but as everyone has said when it is this hot, with so little rain, gotta go in the woods-the deep woods. I'm not too familiar with that far west, but I believe you were approaching near where the public trust was violated and King Rendell donated our State Forests.
I would stay around Ricketts Glenn State Park next time and try to fish Game Lands 57 and Game Lands 13. Get a mountain bike, a lot of water, and go exploring the beginnings of the Mehoopany Creek Watershed, Bowman's Creek.........and then go to SGL 13 and Explore the head waters of Fishing Creek. This is real exploring, take a compass, and some topo maps. If nobody surveys all those streams in that area, the gas companies are going suck them dry.
Even though you're a beginner, often times exploring the forest and the little streams is much more fun than staring at water that has seen 10,000 men. And you will definitely remember those little brook trout 10 years from now.