TroutlineKnow your water.
RiversLakesStatesSnowpackStocking
Troutline

Know your water.

Live river conditions, the forecast and a logbook, for fly anglers.

Explore

  • Rivers
  • Lakes
  • States
  • Snowpack
  • Stocking

Troutline

  • Features
  • FAQ
  • Sources

Account

  • Create a free account
  • Sign in
© 2026 TroutlineTermsPrivacy
Every number traces to a public source: all 38 of them.
  1. Home
  2. /Oregon
  3. /Hosmer Lake

Oregon

Hosmer Lake

Oregon·Central Oregon·43.97° N, 121.78° W
Log an outing

Solunar · next 7 days

About Hosmer Lake

Hosmer Lake sits off the Cascade Lakes Highway at about 5,000 feet, a small, shallow lake of two parts joined by a narrow channel through the reeds, with Mount Bachelor above it. It is fly fishing only and catch and release for every species, and it is known for stocked Atlantic salmon and brook trout that cruise water so clear you can watch them take.

It is sight fishing: small nymphs, damsels and callibaetis, fished slowly to cruising fish from a canoe, pram or float tube. The upper lake and the channel hold fish through summer, and callibaetis hatches on calm mornings bring fish to dries. Wind and bright sun make the fish wary, so early and late are best.

Species

  • Brook Trout
    Common · Jun-Sep · 12-18"

    Cruise the channel and the upper lake.

  • Atlantic Salmon
    Common · Jun-Sep · 12-20"

    Stocked landlocked Atlantic salmon. Release them all.

SpeciesAbundanceBest SeasonSize
Brook TroutCommonJun-Sep12-18"
Atlantic SalmonCommonJun-Sep12-20"

Areas

2 areas

Upper lake

BoatIntermediate

The upper basin, reached through the reed channel.

Best for: Sight fishing to cruising fish

Lower lake

BoatBeginner

The lower basin near the ramp and campgrounds.

Best for: Callibaetis on calm mornings

Access

  • South Campground rampBoat ramp
  • Mallard Marsh CampgroundCampground

At a glance

Ideal water temp
50–65°F
Best seasons

June through September, with the best callibaetis on calm summer mornings. The road opens in late spring.

Regulations

Managed by the Oregon Department of Fish and Wildlife with special rules for the lake. Confirm the current regulations before fishing.

  • Open all year (Central Zone lakes)
  • Catch and release for all species
  • Fly fishing only, barbless hooks required
  • Valid Oregon fishing license required for anglers 12 and older

Source: Oregon Department of Fish and Wildlife. Regulations change annually. Verify before fishing.

Getting there

Bend, OR

About 45 min from Bend on the Cascade Lakes Highway

Fly shops

  • The Hook Fly ShopSunriver
  • The Patient AnglerBend
  • Confluence Fly ShopBend

Camping: Forest Service campgrounds at the lake. Lodging in Bend and Sunriver.

A Northwest Forest Pass is needed. Paddle craft are the way to fish it.

No recent fishing reports for Hosmer Lake

We aggregate reports from local fly shops, guides, and lodges as they publish. Check back, or browse the shops on the Guide tab.

More in Oregon

View all 24 rivers

Central Oregon

Crooked River

142 cfs57.3°F water

Prime

Deschutes River

690 cfs50°F water

Good

Fall River

94.4 cfs

Good

Metolius River

1,200 cfs46°F water

Good

Other regions

Ana River

69.6 cfs

Good

Chetco River

58.7 cfs63°F water

Fair

Chewaucan River

37.6 cfs

Good

Clackamas River

613 cfs54°F water

Good

Grande Ronde River

606 cfs49°F water

Prime

Hood River

249 cfs52°F water

Fair
Fishing
Good
Wind
2mph NE
Gusts 8 mph
Water temp
—
Level
—

Fishing conditions

Good
PoorSlowFairGoodPrime
Limited data · no water temperature
How we rate this
Thu
10/15
—
MDE
Fri
10/16
—
MDE
Sat
10/17
—
MDE
Sun
10/18
—
MDE
Mon
10/19
—
MDE

MmorningDmiddayEevening

poorprime

Today
evening2:26p – 7:26pGoodLight chop, 2 mphFalling pressureBright sun

See the 5-day fishing forecast for the Hosmer Lake

The Fish Index rates each day from the flow, water temperature, weather and moon forecasts. Create a free account to see the days ahead on every river.

A free account also gets you

  • A dashboard for your riversSave your rivers and compare them on one board, with the last week and the days ahead.
  • A logbook that fills in the conditionsLog outings and trips with photos. Troutline adds the flow, water temperature and weather for each day.
  • Your angler profileSee other anglers' public outings, and share yours.

Already have an account?