6/15/2026: Clark Fork River Fishing Report

Summary

Early summer has arrived and all four rivers keep dropping into shape. The story across the region is a hand-off: the salmonfly hatch is winding down and pushing into the upper drainages, while golden stones take over as the headline big bug river-wide. Green Drakes, PMDs, yellow sallies, and caddis are all filling in, so this is prime dry-dropper season. The Blackfoot and Rock Creek are the standouts (Grizzly Hackle rates both 5/5), the Bitterroot offers the best all-around odds, and the Clark Fork has turned the corner and is fishing well as clarity improves. Best regional window this week runs roughly 9:30 a.m. to 2:30 p.m. (Lightweight), and warm afternoons mean watching water temps and starting earlier when needed. Float anglers: fresh down trees and log jams are a real hazard on the Bitterroot and Rock Creek as flows drop fast, and Rock Creek is getting skinny for floating.

At a glance: Dropping and slightly off color, mid-day water temp around 56°F | GH 3/5 | Missoulian Angler 4/5 | Best window 9:30 a.m. to 2:30 p.m.

Dropping and slightly off color, mid-day water temp around 56°F. Roughly 4,490 CFS above Missoula and 8,310 below. The upper end has cleared up nicely and the river has turned the corner from the recent runoff bump, with clarity improving daily. The upper river is more approachable; the lower river is still a bigger-water float and edge-fishing program.

Best techniques

With clarity still slightly off, a nymph rig is a strong default: big stonefly patterns, bright red or pink worms, and heavy Zirdle Bugs. Focus on the goldens up top with dry-dropper rigs (a Chubby Chernobyl, Plan B, Dancin' Ricky, or Blackout Stone in #8-12), and size down for trout keyed on PMDs with a Ms. Tickle, Brindlechute, or para-wulff. Dry fly fishing has been solid in the afternoons. Streamer fishing has been really good through slower water and structure as the river drops. Target soft edges, foam lines, and side channels; the upper river fishes better than the lower right now.

Hatches

Golden Stones, PMDs, Green Drakes, and lots of caddis are hatching consistently, with Salmonflies still in the mix and Yellow Sallies showing.

The Fly Box

Nymphs: Pat's Rubber Legs, TJ Hooker, Zirdle Bugs, San Juan Worm, Explosion Stones, Blowtorches, Shuck Its, Frenchies, Psycho May, Jig PTs, Prince Nymphs, Jigged Hare's Ears

Dries: Chubby Chernobyl, Plan B Golden, Golden Juicy Stone, Henry's Fork Goldenstone, Water Walkers, Dancin' Rickys, Blackout Stones, Ms. Tickle, Brindlechutes, Elk Hair Caddis, X-Caddis, Carlson's Purple Haze

Streamers: Sparkle Minnows, Swim Coach, Mini Dungeons, Peanut Envy, Kreelex Minnows, Woolly Buggers

Outlook. Warmer temps help bug activity build; wind could make casting tougher and a few midweek showers may move through, though those cloudy windows can help the dry-fly bite. June and July on the often-overlooked Clark Fork are special, and the fishing should keep improving as flows drop and fish settle into summer water.

Sources and Thanks

Shop Report date Coverage
Blackfoot River Outfitters June 12, 2026 Clark Fork River
Kingfisher Fly Shop June 15, 2026 Clark Fork River
Grizzly Hackle June 13, 2026 Clark Fork River
The Missoulian Angler June 12, 2026 Clark Fork River
Lightweight Fly Shop June 14, 2026 Clark Fork River
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6/15/2026: Blackfoot River Fishing Report

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6/13/2026: Madison River Fishing Report