What flies are hatching on the Sauk River right now?

Current and seasonal hatches on the Sauk River include Caddis, Pale Morning Dun. Use the AI Hatch Advisor on this page for a live, temperature-aware recommendation.

What's the current flow on the Sauk River?

The Sauk River is running at 149 CFS at the Sauk near Sauk gauge. Readings update every 15 minutes from the USGS Water Services API.

Is the Sauk River fishable today?

Sauk River is outside its fishable window right now. Flow is 149 CFS at the Sauk near Sauk gauge. Check back when conditions return to the normal range.

Sauk River Fly Fishing Conditions

Live Conditions

Sauk River — Sauk near Sauk

Unfishable

149CFS

Discharge

2.32ft

Gauge Height

59.5°F

Water Temp

Updated 52 min agoView on USGS ↗

7-Day Flow

→ Stable

RisingFallingStable

24-Hr Pressure

28.99 inHg · → High/stable

Falling (good)RisingHigh/stable

Local Weather

62°FClear sky

Wind 5 mph28.99 inHg Low & stable

Tough conditions — fish deep

Today

🌫️

Foggy

77° / 52°

Tomorrow

☁️

Overcast

75° / 59°

Wed

🌧️

Rain showers

64° / 55°

0.39"

Thu

🌧️

Rain showers

69° / 52°

0.3"

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.

2

Time of Day

Using: 149 CFS · 59.5°F · SUMMER STEELHEAD. BWOs returning. Mahogany Duns. Cool nights — prime swung-fly water.

What should I pack?

Rod, flies, tippet, and safety gear specific to today's Sauk River conditions.

🪰 Hatch Calendar

Sauk River · September · Early Fall

Full calendar →

🟢 Active now at 59.5°F water

CaddisPale Morning Dun

🟡 Approaching — within 5°F of trigger range

Blue-Winged Olive

Select month

JanDec

SUMMER STEELHEAD. BWOs returning. Mahogany Duns. Cool nights — prime swung-fly water.

Blue-Winged Olive

🟢 Active · 🟡 Approaching · ⚪ Seasonal only

River Map

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

About Sauk River

North Cascades tributary of the Skagit — remote steelhead and bull trout water, glacially influenced flows, and outstanding wilderness scenery near Darrington.

SalmonflyGolden StoneCaddisPale Morning DunBlue-Winged OliveOctober Caddis

Regulations

Wild steelhead must be released. Bull trout must be released. Catch Record Card required. Part of the Skagit tribal co-management zone — check Sauk-Suiattle and Swinomish tribal boundaries.

Learn More

Guides to help you fish Sauk River with more confidence.