Caddis Take Over: Deschutes River Fishing Report — July 17, 2026
Elk Hair Caddis, Stimulator, Parachute Adams, Pheasant Tail Nymph, Copper John, Woolly Bugger
Current Conditions
The lower Deschutes is fishing beautifully this week as summer settles in over Central Oregon. With flows holding steady at 3,720 cfs at the Moody gauge (USGS #14103000, 9 mi above Biggs) — consistent and predictable — the river is in fine shape from Maupin down through Sherars Falls and beyond. Water clarity is excellent throughout, and wade fishing is comfortable at all standard access points above and below the falls.
The one factor demanding attention right now is water temperature. The Maupin area is reading approximately 66°F, and afternoon temps near the mouth at Biggs push toward 67–68°F. Fish are most stressed between 3–5 PM during peak heat. Use a thermometer, practice quick in-water releases, and seriously consider a midday break — then come back for the spectacular evening caddis window. A Hoot Owl Closure is possible in the coming weeks if temps remain elevated; monitor ODFW before heading out.
What's Hatching
July on the Deschutes belongs to the caddis. Spotted Sedge in sizes 16–18 are hatching heavily each evening (6 PM to dark), filling the air in shimmering clouds above the river. Trout are keyed in hard — both on the surface and in the film just below. Don't be fooled by subtle sipping rises; fish are often intercepting emerging pupa in the seams and foam lines, not swiping adults off the top. A swung or lightly twitched caddis pupa on a downstream presentation will out-fish a dead-drifted dry on many evenings.
Pale Morning Duns (PMDs) in sizes 18–20 offer solid dry fly action from roughly 9 AM to noon. Blue Wing Olives (size 20–22) trickle off during the cool morning hours as well. Golden Stoneflies are tapering off but remain worth carrying in sizes 8–12 for midday nymphing through the boulder fields. A handful of early-season steelhead have been reported in the lower river, though a thermal block in the Columbia is keeping numbers down — early morning swinging is your best shot.
Top Flies
- Elk Hair Caddis (sizes 14–18, tan or olive) — the classic evening dry; fish it flush in the film or with a light skitter
- Stimulator (sizes 12–16, orange or yellow) — doubles as a searching dry and Golden Stone imitation through midday
- Parachute Adams (sizes 16–18) — versatile morning dry covering both PMD and BWO activity
- Pheasant Tail Nymph (sizes 16–18) — deadly drifted through seams during morning PMD hatches
- Copper John (sizes 14–18, red or green) — excellent attractor nymph for the deep boulder runs and pocket water
- Woolly Bugger (black or olive, sizes 6–10) — swing it slow through deep pools during midday for heat-seeking trout and the odd early steelhead
Best Access Points
Above Sherars Falls, Maupin provides the most accessible wade fishing at Heritage Flats, the town-side BLM gravel bars, and White River confluence. Below Sherars Falls, Locked Gate, South Junction, Trout Creek, and Mack's Canyon offer outstanding dry fly water — floaters and day hikers willing to pack in will find less pressure and big fish in the canyon. Position yourself downstream of riffle-to-flat transitions at dusk; foam lines and scum lanes will stack with feeding trout from the 6 PM caddis hatch right through last light.
Hazards & Reminders
Water temps near the stress threshold — fish quickly, keep fish wet, and release immediately. Hoot Owl Closure possible; check ODFW updates. Always fish barbless on the Deschutes. High summer flows (3,720 cfs) mean strong current — use a wading staff and don't push your luck crossing in unfamiliar spots.