Overall fishing the South Fork has been good. There have been a couple of days where it has been slow but the cooler water temperatures this July has made the fishing better than recent summers.
Most days there is some good activity in the riffles with pale morning duns, both olive/yellow and pink. When fishing the riffles your best success will come by constantly changing your patterns from high silhouette duns to emergers and then maybe a nymph suspended in the surface film. Drift purple or gold bodied chernobyl stones against the slower grassy banks and over the riffle drop offs. There are some big hoppers out on the lower river below Byington and down to Menan. We are starting to see some golden(mutant) stone casings along the shore but we need to see some drops in the river flow to really get those bugs emerging. If you stay on the river late there has been a good caddis hatch. Finally we have still been relying on a brown rubber leg/small tungsten nymph combination when nothing is going on topside.
The next two to three days we are suppose to have some good cloud cover and that usually makes for better fishing. Good luck!