Deschutes River Fishing Report – September 16, 2026
Elk Hair Caddis, Stimulator, Parachute Adams, Woolly Bugger, Pheasant Tail Nymph, Chubby Chernobyl
Deschutes River – Lower Canyon, Maupin Area
Date: September 16, 2026 | Flow: 4,140 CFS (USGS Gauge 14103000, Moody) | Water Temp: 60°F (15.3°C)
Current Conditions
The lower Deschutes is fishing well this week as September settles into its groove across Central Oregon. The USGS gauge at Moody (14103000, near Biggs) clocked 4,140 CFS as of this morning — right in the seasonal range for mid-September as PGE hydro releases stabilize and irrigation demand tails off upstream. Water temperature is a comfortable 15.3°C (60°F), sitting in the sweet spot for both trout activity and the leading edge of the fall steelhead push. Clarity is excellent — the Deschutes' canyon-regulated character keeps it running gin-clear even at fluctuating flows. Conditions overall: Good.
What's Hatching
September on the lower Deschutes is one of the most exciting transition months on the river. Caddis are still the dominant evening surface event — heavy flights through the Maupin corridor are triggering aggressive rises from dusk until dark. Mahogany Duns (Paraleptophlebia) are making their fall appearance in the slower, glassy riffles above and below Sherars Falls — subtle, technical fishing that rewards patience and a well-presented size 16. Keep a close eye on Blue-Winged Olives (Baetis) on overcast mornings and cloudy afternoons; September's moody skies are perfect BWO weather, and trout stack up in the long, flat tailouts during spinner falls. Trico spinners remain relevant in the early morning hours — before 9 AM on slick flat water, look for the white-winged cloud and target rising fish delicately.
Steelhead are entering the lower canyon in earnest. Early-season fish push through fresh and chrome-bright — swing through the classic runs at Maupin City Park, Harpham Flat, and Locked Gate with big, weighted patterns. Respect early-spawning fish in the shallows and give them a wide berth.
Top Fly Recommendations
- Elk Hair Caddis (size 14–16) – the go-to evening dry; fish it in the surface film or with a slight twitch to trigger strikes during heavy caddis flights
- Stimulator (size 12–14, orange/yellow) – attractor for afternoon searching between hatches; floats high and is visible in broken water
- Parachute Adams (size 16–18) – BWO and Mahogany Dun match on overcast days; land it gently in the tailouts and let it drift drag-free
- Woolly Bugger (size 4–6, olive or black) – swing it on a tight line through steelhead runs or strip aggressively through deep pools for oversized trout
- Pheasant Tail Nymph (size 16–18) – subsurface staple in any two-fly nymph rig; deadly for trout holding in mid-column feeding lanes
- Chubby Chernobyl (size 10–12) – use as a highly visible indicator dry with a Pheasant Tail or Copper John dropper; big attractor profile grabs fish attention
Best Access Points
The Maupin area offers outstanding public access. Harpham Flat (BLM) provides a great stretch of riffle-pool sequences above Sherars Falls — wade wet, work upstream, and you'll find fish stacked in every seam. Maupin City Park is a central launching point for both bank anglers and drift boats running to the lower canyon. Locked Gate and Beavertail campground further downstream offer classic steelhead runs with lower day-use pressure. The section above Sherars Falls is catch-and-release for steelhead; below Sherars Falls is open to retention of hatchery (clipped) steelhead — confirm the current boundary on the ODFW regulation map before you go.
Hazards & Closures
Rattlesnakes remain active through September — watch your step on rock outcroppings and brushy banks. Wading the Deschutes demands cleated wading boots; the basalt is slippery even at low flows. Always verify conditions at USGS Gauge 14103000 before you head out — flows can shift with upstream releases. All wild steelhead must be released immediately; hatchery (adipose fin-clipped) steelhead are open for retention where regulations allow. No harvest of bull trout at any time.
USGS data provisional, subject to revision. Report current as of September 16, 2026. Flow and temperature sourced from USGS Gauge 14103000 — Deschutes River at Moody, near Biggs, OR.