Nymphing with a stone fly nymph as the point fly and mayfly nymph or caddis pupa as the dropper.
For dry fly fishing, start focusing on the back eddys and slow banks. Caddis is the focus.
Steelhead are starting to show up in the lower river... the fishing has been pretty good down there so far. Expect the fishing to get very good if the water temps stay cooler than the Columbia.