Missouri River Fishing Report, June 2, 2026

Summary

Summer conditions are arriving fast and the river is fishing more like a freestone, warming through the day as water moves down from the dam. A warming trend is pushing caddis along while the PMD dry-fly windows open but stay technical. Fish are in their peak metabolic window and eating heavily every day.

At a glance: ~3,300 CFS below Holter | Mostly clear with a touch of rain color | 54 to 56°F, peaked at 57°F | Cooling off the 80s and 90s, daily rain and thunderstorms | PMD windows open but technical, caddis building

Summer conditions are arriving fast, and the river is behaving more like a freestone than a tailwater, warming through the day as water moves down from the dam. A warming trend is back after the recent cool-down, which should push caddis activity along. The fish are in their peak metabolic window and eating heavily every day.

Recent rain has added a bit of color and the prospect of bumping flows; Headhunters reported roughly two inches in 72 hours with more on the way all week, which is welcome news for the reservoirs. Expect flows to stabilize around the 3K mark, perhaps a touch higher and temporarily off-color after the storms.

Near the dam, sow bugs are always on the menu, especially early in the day before the mayfly activity ramps up late morning. Moving downstream, mayflies are the main show, with caddis pupa increasingly worth a look, particularly below Mid-Canyon for the first topwater caddis of the season.

Daily thunderstorms are forecast all week, lightning is a real hazard on the open water of the Mo. Plan floats around the cells and get off the water when storms build. Heavy boat and wade traffic on the upper river right now ("Boats out there. Waders out there."), give other anglers room and watch your drift lanes at the ramps. Recent rain (~2" in 72 hours) is bringing color and may bump flows; the Toston gauge upstream is peaking. Watch for changing clarity and levels, especially below the Dearborn. Afternoon water temps have touched 57°F, warm for early June. Land fish quickly and release them with care during the heat of the day.

Best techniques

• Nymphing (primary). Go deep in the morning, 6 to 7 feet with a worm as the lead fly trailed by a sowbug, and target inside bends and slower water. In the afternoon, shorten to 3 to 5 feet and put the nymph near the top of the column as fish look up for emergers; work hard seams, swirls, and fast shallow bank water. Smaller brown and olive nymphs in #16 to 18 are the call.
• Dry fly. PMD dry-fly fishing was excellent this past week in calm, overcast weather, but the fish are educated now. Long leaders, accurate casts, and fly-first presentations are key. Cripples, spinners, and emergers are beating high-floating duns; downwing, CDC, short-hair-wing, and in-the-film patterns out-produce high-riding flies.
• Dry-dropper. A larger mayfly or a Chubby suspending a nymph shines in skinny water, a Chubby over a Micro May or Frenchie is hard to beat, and the occasional big brown will light up the dry.
• Soft-hackle swing. Late morning to early afternoon is swing time, a Tung Dart (caddis pupa) over a Partridge & Yellow (PMD soft hackle) has been deadly when fish are working just under the surface.
• Streamers. Bright sun has made the streamer bite tough, fish are following but not committing. Get down with heavier sink tips or sinking leaders, and fish low light. Plenty of big-shouldered browns are still on the hunt.

Hatches

The PMD hatch has arrived in numbers, roughly three weeks ahead of schedule, and is building toward the classic early-June peak (historically around June 4 to 6). BWOs are waning, caddis are building and should flourish on the warming trend, micro mayflies (Pseudos) are on the water at varying times, and midges remain a consistent option. Yellow Sallies are starting to show for June, with Tricos and ants on the horizon later in the month.

The Fly Box

Nymphs: Frenchie, Black IPT, Green Machine, PMD Psycho May, Split Case PMD, Spanish Bullet (brown/olive), Spanish Perdigon, Warrior Perdigon, PMD Perdigon, Fullback Napoleon, Two Bit Hooker, Micro May, Crust Nymph, Tung Jig Pheasant Tail, Tung Jig Hare's Ear, GRHE, Blow Torch, Red Bead Blow Torch, Tailwater Sows (natural grey & rainbow), Pill Popper, Wire Worm, Redemptions, Magic Flies, Gold Lightning Bugs, Iron Sally, Split Back, small black PT, Zebras

Emergers: Sprout Baetis/PMD Emerger, Loop Wing Emerger, Captive Dun, Partridge & Yellow, PMD Soft Hackle, Gold Tung Dart

Dries: Purple Haze, Adams, Purple Para Wulff, Royal Wulff, Sparkle Flag, Split Flag, Brianne Dun, Film Critic (BWO/PMD), Missing Link, CDC Para Spinner, Hi-Vis Rusty Spinner, Corn-Fed Caddis, Buzzball (caddis & PMD)

Streamers (low light / sun off the water): Bam Bam, Thin Mint Bugger, Trout Spey Bugger, Mini Montana Intruder, Mini Sculpin, Mini-Dungeon, Micro Dungeons, Micro Peanut Envy, Peacock and Black Bugger, Sex Dungeon (try a big white one), Kreelex, Sparkle Minnow, Lil' Kim, Skiddish Smolt, Gamechanger, Zirdle, Space Invaders

Outlook. Expect a roughly average June, with more rain all week shoring up reservoir storage. Flows should hold near 3,000 cfs, possibly bumping briefly after the rainstorm before settling. The PMD show is the headline: it should intensify all the way through the Fourth of July, though this low-water year may bring an earlier-than-usual taper. Caddis numbers should improve with the warming trend, the first topwater caddis are showing below Mid-Canyon, and Yellow Sallies and terrestrials (ants) will round out the menu as the month goes on.

Sources and Thanks

Shop	Report date	Coverage
Headhunters Fly Shop (Craig)	June 1, 2026	Missouri River
The Trout Shop (Craig)	May 28, 2026	Missouri River
Cross Currents Fly Shop (Craig)		Missouri River
Wolf Creek Angler (Wolf Creek)	May 14, 2026	Missouri River