The Lower Deschutes is fishing well for trout and steelhead from Warm Springs all the way to at least Mack’s Canyon. That is a lot of water to enjoy.
Steelhead are being found in every mile of the lower river now. The colder nights are getting the fish hunkered a little more to the bottom, at least in the morning for the 1st swing pass through you ought to go with the sink tip and a bigger leech or intruder, and when the sun hits the water swing your scandi line with a traditional fly like a Euphoria, Green Butt Skunk, Freight Train. Nymphing for steelhead is very productive with Peacock Girdle Bugs, Purple StoneFly’s, Lightning Bugs, October Caddis and larger BH Flashback PT’s.
Trout action is good and a lot of the above nymphs from above will be good for the trout too, especially the stoneflies and caddis. Adding some smaller tan pupa and perdigons and Berry’s PCP will round out your trout selection pretty nicely. Poke around in the back eddies and shallow riffles with small caddis, BWO’s, midges and rusty spinners.