Deschutes River Fly Fishing Report — August 20, 2026: Evening Caddis Fires Up, 3,920 CFS
Elk Hair Caddis, Stimulator, Chubby Chernobyl, Pheasant Tail Nymph, Zebra Midge, Copper John, Parachute Adams, Woolly Bugger
Deschutes River Fly Fishing Report
Current Conditions Overview
Happy Thursday, anglers! The lower Deschutes is in solid summer shape heading into this week’s fishing. USGS gauge 14103000 at Moody is reading 3,920 CFS with water temperature at a cool early-morning 64°F — expect that to climb toward 67–68°F by mid-afternoon in the canyon heat. Clarity is excellent throughout the lower river, though smoke from regional wildfires has been drifting through the Maupin corridor and visibility on the water can be hazy through midday. Plan your drive and dress accordingly.
The above-Sherars section from Maupin down to the falls remains accessible with wadeable flows in the inside bends and rock gardens, though the main channel is running pushy. Below Sherars Falls toward Macks Canyon, boat traffic picks up on weekends — plan early starts if you want solitude. No new closures are in effect as of this report date.
🐛 What’s Hatching
August on the Deschutes means one thing above all else: the evening caddis hatch. Spotted Sedge (#14–16) are emerging in heavy numbers after 6 PM, with fish rising aggressively in the tailouts and riffles as the canyon cools. This is arguably the best dry-fly fishing in the Pacific Northwest right now — don’t miss the 6 PM to dark window.
- Caddis (Spotted Sedge) — #14–16 | Heavy | 6:00 PM – Dark
- Blue-Winged Olive (Baetis) — #18–22 | Moderate | 9:00 AM – Noon
- PMD (Pale Morning Dun) — #16–20 | Light | 10:00 AM – 1:00 PM
- Midge — #20–24 | Moderate | 7:00 AM – 10:00 AM
- Golden Stonefly — #6–8 | Light stragglers | Morning hours
Note: With midday water temps approaching 67–68°F, avoid fighting fish hard during the 1–5 PM heat window. Fish stack in deeply shaded canyon walls and the oxygenated heads of rapids when temps peak — target these holds with nymphs and give fish a quick, clean release.
🩷 Top Fly Recommendations
For evenings, lead with an Elk Hair Caddis (#14–16) — dead-drifted through the tailouts, it’s the quintessential Deschutes caddis pattern and will draw explosive strikes once fish are keyed in. Follow with a Stimulator (#14) as a high-visibility option in broken water or when caddis are skating. A Chubby Chernobyl (#10–12) works as an attractor and makes a great dropper rig anchor through the riffles.
For morning nymphing, tie on a Pheasant Tail Nymph (#16–18) to match the BWO and PMD nymphs drifting through the slower glassy flats. Pair it with a Zebra Midge (#20) as a dropper during the early midge window. For the fast main-channel runs, a Copper John (#14–16) with enough split shot to tick the bottom is your go-to attractor nymph. Round out your box with a Parachute Adams (#16–18) for any mixed-hatch situations during the BWO/PMD overlap. Late evening, a swung Woolly Bugger (#6, olive or black) through the lower pools can pull big redband trout as light fully fades.
🗺️ Best Access Points
- Maupin (Town Access): Sandy Beach, City Park — excellent walk-in wading above the falls; local shuttles available
- Harpham Flat Campground: Good bank and wading access, upper beats above Sherars
- Ogle Campground / Oak Springs: Float access launch; great wade water nearby in the canyon
- Sherars Bridge: Access above and below the falls; Native American dip-net fishing may be active — respect all tribal fishing operations
- Beavertail Campground: Upper canyon wade and float access, typically less crowded on weekdays
- Macks Canyon: Lower canyon access; boat-in/float-out below Sherars, excellent evening pools
⚠️ Hazards & Notes
- Wildfire smoke: Patchy smoke is present in the Maupin canyon — check air quality before extended outdoor exposure
- Water temperature: Temps may reach 67–68°F by 2–4 PM — rest fish quickly and use wet hands; consider stopping fishing if temps hit 68°F+
- Wading: 3,920 CFS is pushy — use a wading staff in all crossings; cleated wading boots strongly recommended on Deschutes basalt
- Tribal regulations: Respect all posted tribal fishing boundaries; warm springs tribal fishing operations are ongoing
- Rattlesnakes: Peak snake season — watch your step on canyon trails and rocky ledges