Upper lake and upper channel
As of September 11, 2026, the Hosmer Lake is fishing Fair (6.5/10): Chironomid activity, reported by 4 shops.
Last updated
Reports indicate fair conditions.
Conditions are holding steady since the previous update.
Fly fishing only, catch and release. Unique Atlantic salmon fishery.
A quick view of the latest report, gauge, hatch, and fly data available for this water. Missing observations are left unreported rather than estimated.
Current reports mention Chironomid, Callibaetis, damselfly. Recommended flies include Chironomid, Scud, Water Boatman, Damselfly.
Recent reports mention Upper lake and upper channel, Upper lake and channel, lower lake, upper lake, and channel.
Access and seasonal rules can change. Check current regulations and closures with Oregon Department of Fish and Wildlife ↗
Hosmer Lake location
43.8260, -121.7950
No gauge data available.
No flow data available.
| Insect | Stage | Timing |
|---|---|---|
| Chironomid | pupa | — |
| Callibaetis | nymph | — |
| damselfly | adult | — |
| Damsel | adult | — |
| Black Caddis | adult | — |
| Little Black Caddis | adult | — |
| Traveling Sedge | adult | — |
| Midge | — | — |
| Caddis | adult | — |
Great · Updated today
Great · Updated today
Great · Updated today
Great · Updated today
Fly Fishers Place
No recent reports from Hosmer, but upper lake and upper channel are expected to be in good condition. Fish can be picky in September; water is low which may limit indicator fishing in some spots.
Fly Fishers Place
Upper lake temps expected to be good but water levels are quite low. Fish may be spreading down from the upper lake into the channel.
View original report ↗Pnw Fly Fishing
Trolling flies proved effective, with fish responding well to faster-moving presentations after initially bumping the fly. Multiple line types all produced strikes.
View original report ↗Odfw Central Zone
Anglers report excellent brook and rainbow trout fishing in the lower and upper lakes and improved fishing in the channel. July is prime damselfly season at Hosmer; anglers should check water temperatures and move to the upper lake if surface water exceeds 70°F.
View original report ↗Fly Fishers Place
Hosmer Lake is suffering from very high water temperatures throughout most of the lake, with only a small section near the upper lake outflow having safe temps. Fish are stacked in this refuge area but fishing was tough, and the lake is heavily choked with floating weed and algae mats.
Fly Fishers Place
Upper Hosmer fished well with fish preferring a stripped fly on a slow sinking line over indicator techniques. Callibaetis hatches are on but inconsistent, expected to improve with cooler weather.
Confluence Fly Shop
Fishing has continued to be good on the upper lake, though the 'plastic hatch' (crowds) has been bad. Fish are cruising the smaller channel through the middle of the lake and are willing to eat stripped bugs.
View original report ↗Odfw Central Zone
Excellent brook and rainbow trout fishing in lower and upper lakes with improved fishing in the channel. Anglers should monitor water temperatures in the lower lake and move to upper lake if surface temps exceed 70°F.
Fly Fishers Place
Hosmer Lake is fishable and producing with damsel and Callibaetis hatches expected along with caddis and midges. Water temperature should be monitored — stop fishing at 68°F.
Fly Fishers Place
Upper Hosmer is recommended for fishing with a thermometer check advised. Callibaetis, damsels, caddis, terrestrials, and leeches are all productive with a variety of line types and fishing methods applicable.
Score.Fish