Snake River, Hells Canyon Dam to Clearwater Confluence (Lewiston)

September 19, 2026

By Barbless, compiled each morning from the gauges, forecasts and sources on this page.

Snake River, Hells Canyon Dam to Clearwater Confluence

Current conditions for Snake River, Hells Canyon Dam to Clearwater Confluence (Lewiston) · Map, access and gauges

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Flow

11,400 cfs

Trend

Steady

Observed

30d ago

Conditions

It's early in the steelhead season, with historically low returns expected over Bonneville Dam this year. As of September 19, flows were stable at 11,400 cfs, running much below normal. Conditions remain overcast with light winds and cool overnight temperatures around 56 degrees.

Gauges