Clark Fork River

October 4, 2026

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

Clark Fork River

Current conditions for Clark Fork River · Map, access and gauges

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Flow

15,800 cfs ↓

Trend

Falling

Observed

14d ago

Hatch Status

October Caddis on the menu

Conditions

The Clark Fork near St. Regis is fishing well in fall conditions with slower water holding fish. As of October 4, flows were running 15,800 cfs and elevated, though trending downward. Mahogany duns, October caddis, and bwo mayflies are active. Hoppers and low-profile foam patterns remain effective when the water permits.

Gauges

Techniques

  • Droppers like jig pheasant tail were good at times
  • Purple haze parachute or brindle chute behind low-profile foam bug worked
  • Fish still looking for hoppers and low-profile chernobyls in fall slowish water

Recommended flies

Purple haze parachuteBrindle chuteLow-profile foam bugJig pheasant tail