Clark Fork River Fishing Report, July 30, 2026

2026-07-30 (July 30, 2026)

Regional summary

On July 29 the restrictions caught up with the whole valley. FWP's new orders put the Blackfoot on hoot owl from Cedar Meadow down to the Clark Fork confluence, stretched the Clark Fork's hoot owl to the entire river (from its birth at Warm Springs and Silver Bow creeks all the way to the Flathead confluence), and added Upper Rock Creek from the forks down to Stoney Creek. Monture Creek and Upper Lolo Creek joined the list the same day, and three Clark Fork tributary mouths (Fish Creek, Rattlesnake Creek, and the St. Regis) are now closed to all fishing within 100 yards, because bull trout and their neighbors are stacked in those cold seams for thermal refuge. Leave them alone. The Bitterroot, restricted since July 22, is no longer the exception; it is the template. Add wildfire smoke hanging over the valley, highs in the 90s all week, and another step down in flows, and the shape of the fishing is not in dispute: this is a dawn fishery now, everywhere, with a 2:00 p.m. legal curfew on most of it. The good news is that the mornings are excellent. Tricos and PMD spinners own the glass at first light, spruce moths are producing real fish mid-morning on the timbered water, hoppers, ants, and beetles headline everywhere, and the trout, packed into the oxygen, are easy to find if you are willing to set an alarm.

At a glance: ~1,830–1,960 CFS above Missoula, ~2,950 below | 71°F midday | clear and dropping | GH rating: 3/5 | Best window: 6:00–10:30 a.m. | Entire river now on hoot owl, Warm Springs to the Flathead confluence (no fishing 2 p.m. to midnight) | Fish Creek, Rattlesnake Creek, and St. Regis mouths closed to all fishing within 100 yards

Float hazard: Two new trees down between Missoula and Clinton. One sits between Turah and Sha-Ron about half a mile above the Blackfoot confluence; the other is between Clinton and Turah. Both are fresh from this week's storms and neither has an established line yet. Call Blackfoot River Outfitters at 406.542.7411 for current detail before floating either reach.

The Clark Fork's restriction grew from a stretch to the whole river this week, and the tributary-mouth closures are the part to take personally: the cold seams at Fish Creek, Rattlesnake, and the St. Regis are now refuge, not honey holes. That said, this is still the most fishable big water in the valley if you work its schedule. The upper river is going low and weedy, but from town westward the river has real body, and the morning fishing has been legitimately good. Trout are pinned to the shade line: undercut grass, bank margins, faster riffle bars, and the deep eddies, with the slow mid-river flats not worth a cast. By late morning the tubers own the river anyway, which is its own kind of closing bell.

Best techniques

• Foam-and-dropper is the standard rig: a #8-12 tan, yellow, or purple Chubby Chernobyl, Water Walker, More or Less Hopper, Sweetgrass Hopper, Henneberry Hopper, or Juicy Hopper, trailing 3-5 feet of tippet to a stonefly nymph first thing (Pat's RL, Explosion Stone, Twenty Incher, TJ Hooker, Zirdle) and a mayfly-caddis dropper as the day builds (Blowtorch, Frenchie, Shuck It, Jig PT, Prince, Spanish Bullet, Perdigon, Psycho May, Split Case PMD).
• Watch the morning foam lines for snouts. Risers are eating #16-20 caddis dries and PMD spinners, and a #16-18 flying ant or subtle beetle fools the ones that refuse everything else.
• The streamer bite is the sleeper. Small and flashy has outfished big and articulated: Yellow Yummy, Rusty Trombone, Sparkle Minnow, Kreelex, and Lil' Kim through the eddies and buckets, with Barely Legal for the angler who insists on meat.

Hatches

The transition is complete: hoppers, ants, and beetles are the daily bread, backed by morning PMD spinners and Tricos, evening caddis where legal hours allow, lingering Yellow Sallies, and nocturnal stones at first light.

The Fly Box

Nymphs: Pat's Rubber Legs, Explosion Stones, Twenty Inchers, TJ Hookers, Zirdles, Blowtorches, Frenchies, Shuck Its, Jig PTs, Prince Nymphs, Spanish Bullets, Perdigons, Psycho Mays, Split Case PMDs, Caddis Pupa, Jigged Hare's Ears

Dries: Chubby Chernobyls, Water Walkers, More or Less Hoppers, Sweetgrass Hoppers, Henneberry Hoppers, Juicy Hoppers, Corn Fed Caddis, Elk Hair Caddis, X-Caddis, PMD Spinners, Tricos, Yellow Sallies, Purple Haze, Parachute Adams

Streamers: Yellow Yummies, Rusty Trombones, Sparkle Minnows, Kreelex, Lil' Kims, Barely Legals, Mini Dungeons, Peanut Envy, Sculpzilla, Thin Mints, Woolly Buggers

Outlook. Missoula stays in the 90s with sun and smoke through next week. Early will be the ticket for the foreseeable future, the closure now travels with you no matter which reach you pick, and the two new trees deserve a phone call before any float between Clinton and town.

Sources and Thanks

Shop	Report date	Coverage
Blackfoot River Outfitters	July 29, 2026	All four rivers
Kingfisher Fly Shop	July 29, 2026	All four rivers
Grizzly Hackle	July 29, 2026	All four rivers
Lightweight Fly Shop		All four rivers, consolidated weekly
The Missoulian Angler	July 26, 2026	All four rivers, background