The Lower Deschutes morning and evening to dusk fishing are the best times to be in the river with the best opportunities for good success, including on dry flies such as Tan Caddis #16, Grey Caddis #18, PMD’s #16, and Pale Evening Duns #14. Rusty Spinners #16 will be good for the eddies in the evening, often it will be the last fly of the day, but choose wisely between these and an Iris Caddis or Fin Fetcher Caddis because some nights the fish will be on the mayfly’s and other nights eating the caddis. 
Make Sure you have X Caddis and Purple Haze too. 
Nymphing with Caddis Pupa, Red Ass Soft Hackle, Peacock Girdle Bugs, Perdigons, PT’s, Micro May’s and Brown Mini Gulps (looks like a crayfish!)
Mid Day fishing is a mixed experience , some days the nymph action remains constant, and other days it is a grind. Some days you’ll even find some good dry fly action in shallow riffles and more so in eddies even mid afternoon. Look for the shady eddies to have more of that, but that is not hard and fast by any means.