The Middle Deschutes is fishing well in the morning with Euro Nymphs and some PMD’s, and gets good again in the evening to dusk on X Caddis, Missing Link’s, Yellow Sparkle Duns and Purple Haze. 
Swinging a Yellow Soft Hackle, or greasing it up with Aquel to make it float as a dead drifted emerger is also a good bet. 
I fished the Middle D last night after work and it was really good. I remember waiting on the trail for my friend Chester to come out of the river and join me on a spot we love to fish downstream and as he was walking up the bank he said to me that he never gets tired of fly fishing. I agree. I love the experience, and I’ve never felt burnt out of fishing. I jokingly tell people that Dry Fly Fishing is my religion and any chance I have to see a trout eat a dry, especially during a tricky hatch, I am in 100%.