The Metolius River was mostly spared from Fire related stuff, including better air quality most of the days over Sisters, Bend and Sunriver. That was nice for all the September anglers who were out enjoying the hatches that are so exciting this time of the season. 
Green Drakes and Flav’s are spread throughout the river from Canyon Creek to Candle Creek. Look for them later in the afternoon from 1 to 5, but more likely near 3 PM to get going for the day. Hatches usually last about an hour, maybe more on a magical day. 
PMD’s #16 and Mahogany Duns #16 are 2 other important mayflies to look for in the afternoon and may extend beyond the end of the Drake hatch into the early evening. 
BWO’s make up the last really important Mayfly hatch to also fish now, and they will run #18-22 this time of year, and usually hatch more towards evening at the moment. That will change to more of an afternoon hatch later this Fall. 
Caddis are very important this week and will be for a bit. Plan on having some Tan and Olive Iris Caddis #16 and also transitional caddis patterns like a Center Stage and Missing Link in your box too. Weiss’s H/T Caddis in both the Grey #14 and the Tan #16 are becoming my new favorite Adult Caddis. I love the look, the way it floats and how visible it is to the angler w/o being obnoxious to the fish’s perspective. 
Also the October Caddis hatch is increasing intensity and make sure you have a Pupa to fish, and sometimes a #10 Orange Foam Elk Hair Caddis or even your Clark’s Stone is taken as the adult for this hatch and is a great searching pattern when not a lot else is happening. 
You still really need a Henryville or Hemingway pattern in a #16 or #18(!) to match the Little Olive Stone’s.
Lot’s of sightings of Large Cascade Stones and some good reports of friends who have added a few fish to the daily total using a big Chubby. 
The Goldenstone adult action is not over, but it’s slowing down. I have seen viable dry fly fishing until Halloween with them, so if your day includes being on the upper river from the Canyon Pools to the Riverside CG near the headwaters and it’s going to be warm and sunny, make sure to tuck a Clark’s Stone or Norm Woods Special in the collection. 
Plenty of great Euro Nymphing and Indicator rig fishing to be had, with Stonefly Nymphs, Caddis Pupa, Mayfly Nymphs, Perdigons and Jigs. 
Aaaannnnnd, Bull Trout. Best time of the year is now and for the next 7 or 8 weeks