Kootenai River

October 2, 2026

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

Kootenai River

Current conditions for Kootenai River · Map, access and gauges

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Flow

Very low · 4,110 cfs

Water Temp

54°F · Prime temp

Trend

Steady

Observed

16d ago

Hatch Status

Mayfly hatches occurring, caddis and October caddis hatch expected

Conditions

Perfect fall weather is bringing eager trout to the Kootenai this week. As of October 3, flows were running 4,110 cfs at Porthill with water at 54 degrees, ideal for nymphing and dry-fly action. The river holds rainbows, cutthroat, bull trout, and the occasional brown trout, most running 12-16 inches. Low angler pressure and active mayfly and caddis hatches, including the October caddis, make this a prime window for the weekend and into next week.

Gauges

Techniques

  • Nymphing has remained a reliable producer all over the river

Recommended flies

Brita Fordice's Worm FarmFly Project ImperialUmpqua Jigged CDC Pheasant Tail TungstenPeach FuzzEgan's Frenchie JigKelly Galloup's Tilt Wing DrakeCarlson's Purple HazeUmpqua E-Z Caddis TanUmpqua Tungsten Thin Mint