Missouri River Fishing Report, July 22, 2026

2026-07-22 (July 22, 2026)

Summary

Five days on from the July 17 report and the Mighty Mo has not blinked. Every shop that posts a dated report is still running last week's: Headhunters on the 12th, Cross Currents on the 10th, the Trout Shop on the 9th. The river reads exactly where it did, a hair over 3,200 CFS out of Holter with water in the mid-60s at first light, and the Tricos are still setting the daily timetable below the dam. On a freestone that kind of stillness would barely rate a mention; on a tailwater it is the report. The dam keeps the flow honest, the bugs keep the clock, and the trout keep getting harder to fool. The only genuine variable is the sky, and mid-summer heat is deciding when you fish rather than whether — a strong morning, a dead afternoon, and a quiet second act at dusk.

At a glance: Clear tailwater with weed beds thickening in the water column | ~3,230 CFS below Holter Dam this morning, a shade over 3,200 all week (live USGS; regulated and steady) | ~65°F at 8:45 a.m., climbing into the upper 60s by midday | Tricos run the morning, caddis close the evening, and the baking middle of the day is for a shady seat in Craig.

None of the current sources split the river into named beats this week, so it reads as one tailwater picture from the dam down through Craig. The short version: the morning is where the day is won, and the fish demand to be earned. Trico numbers are heavy enough that Cross Currents is calling the late-morning dry-fly window the best it has seen all season. The hatching females bring fish up from before sunup to around eight; the mating columns then collapse into a male spinner fall that hits the water in earnest between nine and ten. On the thickest mornings the sheer carpet of naturals works against you — your single imitation simply disappears into the crowd — and the most reliable eating has come in the softer window from roughly eleven to noon as the fall thins out. Caddis and PMDs are on the water but riding in the Tricos' wake, with the best caddis showing near sundown up top around Holter and the Wolf Creek Bridge.

Under the surface the story is weed. As the beds fill in along the soft margins, the cleaner feeding lanes have slid to the center of the river, and that is where the nymph rigs belong now. The mornings still reward the old tailwater one-two of a worm trailed by a sowbug; downsize to the small stuff once the bugs start popping around ten or eleven. These are heavily schooled fish that have seen anglers since spring, so this is honest A-game water — long leaders, accurate casts, and a drag-free, fly-first drift will out-fish muscle every time. The shops in Craig are posting the daily fly-size read, and a five-minute stop at the counter for this morning's specifics is worth more than a fly bin's worth of guessing.

Fish the morning, then let the heat have the afternoon. With the water already touching the mid-60s at dawn and climbing through the day, the smart plan and the responsible one line up: work the Trico window early, sit out the hot middle, and come back for the evening caddis. Carry a thermometer and give the fish a rest if the tailwater pushes into the high 60s. And expect company — peak season on a river fishing this well means boats in every run and wade anglers on the good flats, so start early and share the water gracefully. Check Montana FWP for any heat-driven fishing restrictions before you launch.

Best techniques

• Mornings are a Trico game. Fish the hatching females before sunrise to around eight, then swing to the spinner fall as the columns drop between nine and ten. On calm air, single- and double-wing Trico spinners and midge clusters or a Buzzball fool risers; when the wind stands the naturals up, go subsurface with a drowned or Sunken Trico, or hang a winged Zebra beneath an indicator or a Chubby. When fish stack into pods, a double-dry or dry-and-emerger rig keeps you honest about where the tiny fly is.
• Nymph the center seams as the weeds crowd the edges. Early, the Wire Worm-and-sow combo is tough to beat — run about five feet to your first bug over 4-to-6-foot gravel, and short-leash to two or three feet when you slide onto the flats or pick apart a pod. When the bugs pop mid-morning, drop to a Red Bead Duracell, Frenchie, Little Green Machine, Zebra Midge, Tufted Zebra, Black IPT, Two Bit Hooker, Split Case PMD, Brown or Spanish Perdigon, Fullback Napoleon, Micro May, Crust Nymph, Psycho May, or a Blow Torch. In the fastest, shallowest water the Zirdle is the call this week — both Headhunters and Cross Currents flag it as the one to have on right now.
• Evenings belong to caddis and a few duns. Ahead of dark, look for sparse PMD para-spinners (CDC Para Spinner) and Translucent Caddis Emergers in the film, then reach for Film Critics, Sparkle Flags, or Split Flags on the evening duns, and small Corn Fed Caddis, Missing Link Caddis, Superman Caddis, High Vis Spent Caddis, or Stalcup's Adult Caddis once the egg-layers come off — keep the profiles tiny, because these fish have wised up to anything bulky. A Rusty Spinner is never a bad last-light bet. Streamers are close to a lost cause with the weeds fouling every strip, but an angler willing to go against the grain with a Kreelex, Sparkle Minnow, Bam Bam, Thin Mint, Mini Montana Intruder, Mini Sculpin, Mini Dungeon, Micro Peanut Envy, Lil Kim, a Trout Spey Bugger or Zonker, or a big white Dungeon can still pull an aggressive fish out of an otherwise empty afternoon.

Hatches

Tricos are the headline, the morning hatch and spinner fall driving the whole day below Holter. Caddis are the reliable evening event, best in the egg-laying flights near sundown on the upper river, PMDs are hanging on with a few evening duns, and hoppers and ants are becoming a real bank option as the summer deepens.

The Fly Box

Nymphs: Wire Worm, Tailwater Sow, Zirdle, Red Bead Duracell, Frenchie, Little Green Machine, Zebra Midge, Tufted Zebra, Flying Zebra, Black IPT, Two Bit Hooker, Split Case PMD, Brown/Spanish Perdigon, Fullback Napoleon, Micro May, Crust Nymph, Psycho May, Blow Torch

Emergers: Sunken Trico, Translucent Caddis Emerger

Dries: Trico Spinners (single and double wing), Midge Clusters, Buzzball, Chubby Chernobyl, PMD Para Spinner, Corn Fed Caddis, Missing Link Caddis, Film Critics, Sparkle Flags, Split Flags, Superman Caddis, High Vis Spent Caddis, Stalcup's Adult Caddis, Rusty Spinner

Streamers: Kreelex, Sparkle Minnow, Bam Bam, Thin Mint, Trout Spey Bugger, Mini Montana Intruder, Mini Sculpin, Mini Dungeon, Micro Peanut Envy, Peacock & Black Bugger, Lil Kim, Zonker, White Dungeon

Outlook. More of the same, which on this river is a compliment. Expect the tailwater to hold in the low-3,000s CFS with the dam doing its steady work, the Tricos to keep anchoring the mornings, and the caddis to keep the evenings honest. The heat is the wild card, so let the thermometer set your hours rather than the clock. The weed beds will keep thickening, walling off the margins and pushing the good nymphing to the center while making streamer work more of a stubborn hunt than a plan, and the terrestrial game — hoppers and ants along the banks — should earn a little more of your attention with each hot week that passes. Play nice with the crowds, and fish early.

Sources and Thanks

Shop	Report date	Coverage
Headhunters Fly Shop	July 12, 2026	Missouri (freshest)
Cross Currents Fly Shop	July 10, 2026	Missouri
The Trout Shop / House of Fly	July 9, 2026	Missouri
Wolf Creek Angler	June 19, 2026	Missouri (background)
Montana Fly Goods (Helena)	April 29, 2026	Missouri (background)
Montana Trout Hunters (Helena)	No current report	Missouri (coverage gap)