What flies are hatching on the Hosmer Lake right now?

Current and seasonal hatches on the Hosmer Lake include Callibaetis, Damselfly, Chironomid. Use the AI Hatch Advisor on this page for a live, temperature-aware recommendation.

What's the current flow on the Hosmer Lake?

The Hosmer Lake is running at currently unavailable — check the USGS gauge at the primary station for the latest reading. Readings update every 15 minutes from the USGS Water Services API.

Is the Hosmer Lake fishable today?

Live conditions for Hosmer Lake are unavailable right now. Check the embedded gauge widget on this page for the latest data.

Hosmer Lake Fly Fishing Conditions

No Data

Gauge data unavailable for Hosmer Lake.
Check USGS directly ↗

24-Hr Pressure

24.99 inHg · → High/stable

Falling (good)RisingHigh/stable

Local Weather

69°FOvercast

Wind 10 mph24.99 inHg Low & stable

Tough conditions — fish deep

Today

☀️

Clear sky

70° / 35°

Tomorrow

☁️

Overcast

78° / 46°

Tue

☁️

Overcast

63° / 46°

Wed

🌧️

Rain showers

52° / 44°

0.7"

Cold front incoming — go deep with nymphs, surface activity likely slow.

Weather by Open-Meteo · No API key · Updated every 30 min

What should I fish today?

⚡ AI

AI-powered recommendation using today's live flow, temperature, and hatch data.

Time of Day

Using: Callibaetis returning. BWOs

What should I pack?

Rod, flies, tippet, and safety gear specific to today's Hosmer Lake conditions.

🪰 Hatch Calendar

Hosmer Lake · September · Early Fall

Full calendar →

Showing typical dates — water temperature data unavailable for live hatch predictions.

Select month

JanDec

Callibaetis returning. BWOs (size 18-20). Damselflies tapering. Brook trout pre-spawn — RESPECT.

Blue-Winged Olive

River Map

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USGS Gauge (click for site ID)Fishing Access / SectionScroll to zoom disabled — use map controls

About Hosmer Lake

High Cascades fly-only lake along the Cascade Lakes Highway — trophy brook trout and Cranebow rainbows in a shallow, weedy alpine lake ringed by lodgepole pine. Stillwater fishing for selective fish on long leaders. NOTE: Atlantic salmon program discontinued 2014–2015.

CallibaetisDamselflyChironomidCaddisBlue-Winged OliveMidge

Regulations

FLY FISHING ONLY. Catch-and-release only. Stillwater — no CFS gauge applicable. Electric motors only on lake.

Learn More

Guides to help you fish Hosmer Lake with more confidence.