South Fork Snake River

August 30, 2026

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

South Fork Snake River

Current conditions for South Fork Snake River · Map, access and gauges

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Flow

6,260 cfs

Trend

Steady

Observed

54d ago

Conditions

Cooling weather is supporting excellent fishing across multiple techniques. Small dries work the riffles, while nymphing in deeper pockets remains productive. Streamers are worth throwing given strong potential. Mahogany duns and BWOs are active, so consider heavy beadheads, stonefly patterns, and streamers to match the conditions. As of August 30, flows were running 9,450 cfs at Irwin to 6,220 cfs at Lorenzo and stable.

Gauges

Recommended flies

Mahogany dunsBWOsHeavy beadhead nymphsStonefly patternsStreamers