upper lake

Hosmer Lake

As of July 28, 2026, the Hosmer Lake is fishing Fair (7.7/10): Damsel activity, reported by 3 shops.

Last updated

High confidence3 sources · freshest data 1d ago

Reports indicate good conditions.

Fly fishing only, catch and release. Unique Atlantic salmon fishery.

atlantic salmon · brook trout
7.7
Fair

Flow Data

No gauge data available.

No flow data available.

Signal Breakdown

Overall Signal
7.7Fair
Shop Reports
7.5
Report Agreement
8.1

Recommended Flies

DamselflyChironomidGoddard CaddisCallibaetisAntBeetleLeechleeches

What's Hatching

InsectStageTiming
Damsel
Callibaetis
Little Black Caddisadult
Traveling Sedgeadult
Chironomid
Midge
Caddisadult
Damselflyadult
Black Caddisadultevening
Caenisadultmorning

Recent Reports

Fly Fishers Place

2026-07-27GOOD

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.

DamselCallibaetisLittle Black CaddisTraveling Sedge CaddisGoddard CaddisMidgeAntBeetleHopperLeechChironomidBlobJig Red PT
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Fly Fishers Place

2026-07-25GOOD

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.

blue chubbyblue chubby with extended body adult damselGoddard Caddisleechesblobschironomids
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Fly Fishers Place

2026-07-24GOOD

Upper Hosmer Lake is listed as a viable fishing option during the fire closures.

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Confluence Fly Shop

2026-07-24EXCELLENT

Water has warmed significantly but remains cool enough in the upper lake. Damsel adults are popping off with vicious rises, and sub-surface patterns including chironomids and leeches are also producing well.

Level-Headed DamselZack Attack DamselPine Squirrel Leech
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Odfw Central Zone

2026-07-23EXCELLENT

Anglers report excellent brook and rainbow trout fishing in the lower and upper lakes with improved fishing in the channel. July is prime damselfly season at Hosmer Lake.

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Fly Fishers Place

2026-07-21GOOD

The upper lake is in good shape temperature-wise with plenty of fish rising to various food sources throughout the day. The lower lake and most of the channel are too warm and should be avoided.

damsel
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Fly Fishers Place

2026-07-20FAIR

Low water has created a large weed island in the lower lake due to leaks in the earthen dam; ODFW has been contacted about repairs. No firsthand report available but the upper lake is expected to be cool with typical stillwater hatches.

damselsleechesscudscallibaetis nymphschironomidstraveling sedges
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Fly Fishers Place

2026-07-11FAIR

Hosmer Lake's upper lake is holding water temps in the safe zone for now, with lots of damsels active and callibaetis present though not at peak. Traveling sedge hatches and black caddis in the evenings provide additional opportunities.

Damsel NymphDamsel AdultCallibaetisGoddard Caddis #10Black X-CaddisAntBeetleScudLeech
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Confluence Fly Shop

2026-07-10FAIR

A fairly quiet fishing week due to high numbers of non-fishing floaters seemingly scaring fish. Callibaetis and damsels remain the most prolific bugs.

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Fly Fishers Place

2026-07-04FAIR

The lower lake and channel are warming and should be avoided during warm parts of the day; the upper channel and upper lake remain fishable with cold spring water. Callibaetis hatches have been good and damsels are abundant.

callibaetis nymphcallibaetis drydamsel nymphdamsel dryleechchironomidsmall scudblack caddisGoddard CaddisChubbyantbeetleCaenis
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Reports sourced from