Deschutes River Fishing Report – May 15, 2026: Salmonfly Season Hits Its Stride
Chubby Chernobyl, Stimulator, Elk Hair Caddis, Parachute Adams, Pheasant Tail Nymph, Copper John, Woolly Bugger
Deschutes River Fishing Report – May 15, 2026
Lower Deschutes | Maupin Area | Above & Below Sherars Falls
If there is one week on the Oregon fly fishing calendar that every angler circles in red, it is mid-May on the Lower Deschutes. The 2026 season is delivering exactly what the hype promises. Salmonflies are on the move, caddis are swarming in the afternoon light, and the wild redband rainbows of Central Oregon are looking up.
Current Conditions
The USGS gauge at Moody (gauge 14103000) is reading 3,720 cfs as of this morning, with water temperatures at a comfortable 57°F (13.9°C) — well within the ideal range for active feeding and dry-fly opportunity. Flows are elevated for spring but very much in the fishable zone. Wading anglers should exercise caution on slick basalt, stick to known shallows, and avoid exposed mid-river bars at this level. Drift boats and rafts will have excellent floats from Maupin downstream through the canyon.
Water clarity is slightly off-color with the elevated flows, but visibility in most pools and runs is sufficient for standard presentation distances. The Deschutes is running green-tinged rather than chocolate — a good sign.
The Hatch Report
The moment you have been waiting for: Salmonflies (Pteronarcys californica) are migrating. Guides on the water this week are reporting scattered egg-layers and the tell-tale orange wing cases clinging to bankside willows. The hatch has not fully blown up yet — expect the peak window to open over the coming 5–7 days as temperatures continue to climb. Right now, a single salmonfly dry or dry-dropper rig will produce throughout the day, with the best action concentrated in the last two hours of daylight.
Alongside the salmonflies, caddis are extraordinarily thick — particularly in the late afternoon and evening. Tan and olive caddis in sizes #14–#16 are drawing aggressive surface takes. PMDs (Pale Morning Duns) and PEDs are also present in modest numbers; their nymph forms are worth carrying. Below the surface, stonefly nymphs are in mass migration to the banks — a slow-drifted large dark nymph is easy pickings for a hungry rainbow.
Top Fly Recommendations
- Chubby Chernobyl (#6–#8, orange/black) — the go-to salmonfly imitation; fish it as a dry or as the lead fly in a dry-dropper setup
- Stimulator (#6–#8, orange) — classic stonefly attractor, superb in riffles and at the tail of runs
- Elk Hair Caddis (#14–#16, tan/olive) — evening workhorse; swish it across the surface in the film for explosive takes
- Parachute Adams (#14–#16) — reliable all-day searching pattern; doubles as a PMD imitation
- Pheasant Tail Nymph (#14–#16) — dead-drift deep under an indicator for PMD and stonefly nymph-eating fish
- Copper John (#12–#14, red or copper) — heavy attractor nymph that gets down fast in the elevated flows; exceptional in fast pocket water
- Woolly Bugger (#6–#8, black or olive) — swing it through deep runs and below ledges to pick off aggressive fish not interested in surface action
Best Access Points
Above Sherars Falls: The Maupin City Park boat ramp and the Oak Springs hatchery area provide excellent wade-fishing access to classic riffle and run structure. The canyon section above town holds large fish in the deeper runs. Below Sherars Falls: The BLM road off Highway 216 reaches multiple pull-outs along the canyon. The water below the falls fishes differently — more remote, larger fish, and excellent float-fishing through the gorge to the lower canyon takeouts near Macks Canyon.
Hazards & Notes
Flows at 3,720 cfs make wading treacherous on slick basalt — felt soles with studs or korkers are strongly advised. Keep an eye on afternoon weather; thunderstorm activity can develop quickly in the canyon in May. The upper Deschutes above Benham Falls remains closed through May 21 — this report covers the lower river only. Rattlesnakes become active this time of year along south-facing canyon walls; watch your step off-trail.
USGS data is provisional and subject to revision. Always check current conditions before your trip. Gauge: DESCHUTES RIVER AT MOODY, NEAR BIGGS, OR (14103000).