Clark Fork River Fishing Report: May 5, 2026

Spring runoff is here. All four rivers are running high, off-color, and pushy with cold water in the mid-40s to low 50s. Subsurface fishing — bigger and darker — is the bread and butter, with dry-fly opportunities tied to afternoon hatches of March Browns, BWOs, late Skwalas, and the first Mother's Day Caddis on the Clark Fork and Bitterroot. The Bitterroot has officially entered peak runoff and is the toughest of the four; the Blackfoot and Rock Creek are the cleanest. Watch the gauges — forecast highs in the low 70s through Tuesday will push another snowmelt bump before Wednesday's cold front swings rain, snow, and 50s back through the system. Floaters: log jams and debris are still serious hazards, especially on the Bitterroot near Poker Joe.

Water: Up ~500 cfs over the weekend; high and pushy · Visibility: Off-color, slowly improving · Temp: 46°F

The Clark Fork is fishable across both upper and lower stretches, with hatches building daily. Evening windows have been the most reliable for dries — the hour before sunset is the sweet spot for finding fish working softer water. Subsurface still produces best during the day. Mother's Day caddis and the first Fluttering Stones are now in the mix alongside the regular spring lineup.

Hatches: Skwalas (any day now, plus Fluttering Skwalas midday), March Browns, BWOs, early Mother's Day Caddis, midges, plus Nemoura and Capnia stoneflies.

Best techniques:

• Dry-dropper for prospecting — Chubby, Water Walker, or Dancin' Ricky up top with a TJ Hooker, Prince, or Jig PT underneath.
• Heavy indicator rigs through inside seams, slower buckets, and transition water — stonefly nymphs plus a Pheasant Tail, Frenchie, or dark perdigon dropper.
• Dark, high-contrast streamers — black/purple/olive Dungeons, Gongas, Woolly Buggers — with a Sparkle Minnow or Goldie mixed in where clarity improves.

Featured flies:

• Dries: Carlson's Purple Haze, Stranahan's Brindle Chute, On Point Para Wulff – BWO, CDC Midge Adult, Bucky's Klinkhammer-Zebra, Chubby Chernobyl, Hi-Vis Micro Chubby, True Skwala, Blackout Stone, Dancin' Ricky, D&D Cripple, Ms. Tickle, Last Chance Cripple, Parachute Adams, Corn-Fed Caddis.
• Nymphs: MFC Speckled Double Bead Stone, MFC Tungsten 20 Incher, Solitude TJ Hooker, MFC Jig Wonky Worm, MFC Jake's Depth Charge Jig Worm, Frenchies, Princes, Zirdles, Jig PT, Duracells, San Juans.
• Streamers: MFC Chicago Overcoat, Coffey's Conehead Sparkle Minnow, Lil' Kim, Kreelex, Rio Thin Mint Bugger, Dungeons, Gongas, Woolly Buggers, Sir Sticks-A-Lot.

Outlook: Saturday in the 50s climbing to ~73°F Tuesday with partly sunny skies; midweek system drops temps back to the 50s with rain, snow, and breezy conditions. Watch flows for another bump from the warm-up.