The Middle Deschutes is in great shape from Bend down to Lake Billy Chinook. Morning, Afternoon and Evening fishing is all good. Like the Lower D, morning is going to be a nymph show, with a heavy emphasis on Euro Styles. 
PMD and BWO hatches are strong in many places and a good number of later summer caddis are out. I love Purple Hazes and Float & Fool for attractors. A few places around Tumalo can offer some good hopper action.