The Lower Deschutes is really good for trout on the Warm Springs to Trout Creek drift and below to the Locked Gate area for us. 
Caddis Hatches have been great, with #16 Tan and #18 Black being the 2 most important caddis to match now. Still a fair number of PMD’s and some Pale Evening Duns too and they are collecting in the eddies for good dry fly action even mid day if you look in the right place. In those eddies add some spent caddis (the Dead Bug #16) and Rusty Spinners including my Sunset Spinner and the Winner Spinner as they have a low profile from the fish’s perspective but are really easy to see for us. 
In the evening things pick up even more, add some Purple Haze and Tan X Caddis to the mix, and swing soft hackles. 
I can’t emphasize how important Caddis Pupa are to your success there. Tan Sparkle Pupa #16, Grey #18 and also Primetime Pupa in both Green and Tan will add fish to the day. Perdigons, PT’s, Girdle Bugs will be great too. 
Steelhead numbers were quite good over Bonneville Dam this week and we saw a good bump over the Dalles Dam too. To me, I know a lot of those fish are going up the Deschutes and we will love to see them soon. Our October and November in the day stretch is going to be a good one. Get on the schedule with Tonn, Troy and Steve if you want to do a Steelhead trip this fall.