The Middle Deschutes is good fishing and with the hot, bright days you’ll want to focus on early morning to 11 am, and from 6 pm to dark. Hatches are the same as the Lower D, with PED and PMD and Caddis being prevalent but in some areas in the evening make sure you have BWO’s #18-20 too.
Renegades, Stimulators, small Chubbies, Purple Haze (my favorite) are dry flies to use that are not exactly hatch matchers but can stick fish for sure.