Blackfoot River Fishing Report: May 14, 2026

Regional headline: warm weather has pushed Western Montana into full runoff. All four rivers are high, off-color, and pushy. The Bitterroot is the most fishable option this week — and only because of its side channels and protected edge water. Subsurface (worms, big stonefly nymphs, dark streamers) is outfishing dries everywhere; the dry-fly bite is best held for cloudy afternoons and clearly rising fish in soft water.

At-a-glance: Water high and off-color · ~5,100–5,900 CFS at Bonner · Water temp 50–52°F · Grizzly Hackle: 1/5 · Best window: 11:00 a.m. – 3:00 p.m. · Hatch focus: March Browns & BWOs (early, sporadic)

Snowmelt push has rivers high, dirty, and pushy. Wade conservatively; don't float fast water without strong oar skills. Stay tight to banks and soft inside seams.

The Blackfoot near Missoula/Bonner has bumped to ~5,900 CFS and lost clarity — Monture Creek (still draining its old landslide) is the suspected culprit. The upper river near Helmville sits ~1,000 CFS, also high. With cold water and limited visibility, dry-fly action is sporadic; afternoons may produce a few March Browns, BWOs, and the rare straggler Skwala in softer water, but Grizzly Hackle still calls the river spotty at best.

Best techniques:

• Nymph heavy and tight to slow inside seams, tailouts, and back-eddies. Stonefly nymphs and worms are the workhorses; smaller mayfly nymphs (Pheasant Tails and perdigons) trail well as droppers.
• Streamers fished slow and deep along structure — high-contrast dark patterns when the water is muddy, switching toward white and gold as clarity returns. Sparkle Minnows, Kreelex Minnows, and Woolly Buggers are the named go-tos.
• Dry-fly fishing is opportunistic only — keep Carlson's Olive Haze, Stranahan's Brindle Chute, On Point Para Wulff (BWO), MFC Hot Spot Para-Wulff (Brindle and Green Drake), and Chubby Chernobyl handy for any window of rising fish.

Hatches & flies:

• March Browns and BWOs are the working hatches; early caddis are still days away.
• Worms — Squirmy Worm, San Juan Worm, Wire Worm — and big stonefly nymphs like Zirdles are getting the nymph eats.

Outlook: Monture clarity should improve as snowmelt pulses level off. The salmonfly hatch is "around the corner" per Grizzly Hackle — a few weeks out — but warmer weather mid-week (highs into the low 80s by Wednesday) will keep the snowmelt running. Expect another week or two of high-water tactics before the river settles.