Fly fishing report · Greater Yellowstone

Madison River

A practical upper Madison report for West Yellowstone, Hebgen, Quake Lake, and the fast riffle water downstream.

Check flow & weather

Today's river scoreHigh source confidence

Poor

Best option: Float.

A float can fit better than wading only if launches, shuttle, boat skill, wind, and local rules all check out.

Updated Jul 14, 7:46 AM UTCUsually refreshes about every 15 minutes

Recommended approachFloat

Mode scores adjust the river-wide score for the risks of wading, bank fishing, or floating.

Wade4/100

Wading is the most sensitive plan today. Use protected edges only, avoid crossings, and downgrade quickly if clarity or current feels wrong.

Bank / edgeCheck

This report does not describe this as a primary mode. Verify legal access, depth, launches, and retreat options before planning around it.

Float · Best fit43/100

A float can fit better than wading only if launches, shuttle, boat skill, wind, and local rules all check out.

Before you go

Water temperature above salmonid stress threshold

Confirm before you leave

Flow and weather right now.

Use the flow trend to confirm the score before you leave. Weather can change the safest and most productive fishing window.

River strategy

Start with flow, temperature, and the section you plan to fish.

The upper Madison can fish very differently above Hebgen, below Quake Lake, and farther down the riffle water. Use the live flow chart first, then match the plan to wade safety, boat rules, and water temperature.

Use the West Yellowstone gauge for the upper-river reference, then compare with downstream gauges if you plan to fish below Quake Lake.
Expect strong current, slick rocks, and long riffle water. A wading staff is worth carrying.
Dry-dropper, nymph, and streamer plans all have a place, but the best choice depends on flow and season.
Check Montana FWP regulations and temporary restrictions before fishing, especially during warm summer weather.

Why this score moved

Water temperatureLowers score

USGS water temperature is about 72F. Do not pressure trout or salmonids in warm water.

Best mode nowLowers score

Float: A float can fit better than wading only if launches, shuttle, boat skill, wind, and local rules all check out.

FlowUse caution

USGS shows 315 cfs with a stable over about 6 hours trend. same-date USGS history (1913-2025, 101 readings) puts normal around 452 cfs and the low-water marker near 351 cfs; today's flow is unusually low for the date. Low water can make fish spooky, warm, pressured, or concentrated; check temperature and handling risk.

SeasonHelps score

Early summer: A major hatch period with salmonflies, caddis, PMDs, and stonefly nymphs in play.

Public alertsHelps score

No active NWS alert was returned for this forecast point.

Read the water

What changes the plan.

The Madison rewards anglers who build the day around flows and water temperature. When the river is stable and cool, cover riffles methodically with dry-droppers, nymph rigs, and soft hackles. When flows rise or visibility drops, focus on protected edges and streamer water instead of forcing long mid-river wades.

Low and clear

Use longer leaders, smaller droppers, lighter tippet, and avoid walking through likely holding lanes.

Stable medium flow

This is the most flexible window for dry-dropper rigs, tight-line nymphs, soft hackles, and covering riffle edges.

High or pushy

Stay close to the bank, skip risky crossings, and fish inside bends, soft shelves, and streamer water near structure.

Warm afternoons

Carry a thermometer in summer. If water temperatures climb into stressful trout conditions, fish early, move to colder water where legal, or stop.

Field plan

Fish it with intention.

Best flows

Use the West Yellowstone trend to frame the day, then match it to the section. Stable medium flows are the most forgiving for dry-droppers and nymphs; high pushy water should narrow you to edges, short drifts, and fewer crossing ideas.

When to skip

Skip crossings when the river is pushy, when afternoon temperatures are stressing trout, when wind turns accurate presentations into guesswork, or when crowd pressure at the reach you chose would force sloppy wading around other anglers.

Local plan

Split the day by section before leaving town: park-boundary and upper-river checks near West Yellowstone, classic fifty-mile-riffle decisions around Lyons Bridge and Raynolds Pass, then lower-valley alternatives only if your original section is too busy or too high.

Backup water

If the Madison is crowded, too warm, or blown out by wind, pivot to Hebgen Lake for a different style of day or to the Gallatin when you want a separate road-access freestone option.

Hatches & flies

Bring a flexible box.

TimingWhat to watchUseful flies

March to AprilMidges and blue-winged olivesZebra midges, RS2-style emergers, small pheasant tails, BWO dries

Reviewed pattern · report says “Zebra midges”Zebra MidgeLook for a very slim tapered thread body, evenly spaced contrasting wire rib, a small bead, and no tail or wing. The reviewed classic is black with silver wire and a silver bead. Red, olive, brown, glass-bead, jig-hook, resin-coated, or tailed forms must remain labeled variations rather than replacing the classic identity.See photos & how to fish it

Reviewed pattern · report says “small pheasant tails”Pheasant Tail NymphThe pilot page distinguishes the sparse original idea from the bulkier American form. Both use pheasant-tail fibers and copper wire, but bead heads, peacock-herl thoraxes, legs, flashbacks, jig hooks, and soft-hackle collars are variations that must be labeled.See photos & how to fish it + 2 more reviewed guides in the Fly Box

May to JuneCaddis, PMDs, stoneflies, early salmonfliesElk hair caddis, PMD comparaduns, prince nymphs, stonefly nymphs

Reviewed pattern · report says “Elk hair caddis”Elk Hair CaddisLook for a tented elk- or deer-hair wing, clipped hair head, dubbed body, rib, and hackle palmered along the body. The body color should be labeled because tiers often match different natural caddis colors.See photos & how to fish it

Reviewed pattern · report says “PMD comparaduns”PMD ComparadunA pale slender body, split tail, upright semicircular deer-hair wing, and no hackle define the Comparadun profile. Sulfur and BWO Comparaduns are color or hatch-specific destinations, not automatically PMDs.See photos & how to fish it + 2 more reviewed guides in the Fly Box

Late June to JulySalmonflies, golden stones, PMDs, caddisChubby Chernobyls, Stimulators, PMD dries, caddis pupa

Reviewed pattern · report says “Chubby Chernobyls”Chubby ChernobylIdentify the construction, not the color: a long foam overbody over a segmented dubbed underside, rubber legs at two tie-in stations, two distinct buoyant synthetic-yarn wing sections, and a short flash tail. The paired wing stations and layered foam-and-dubbing body separate the reviewed Chubby from the original Chernobyl Ant and from generic foam hoppers or beetles.See photos & how to fish it

Reviewed pattern · report says “Stimulators”StimulatorLook for a hair tail, dubbed abdomen with palmered hackle, tented hair wing, contrasting front hackle, and bright thorax or head. Colors and sizes vary widely and must remain labeled.See photos & how to fish it + 2 more reviewed guides in the Fly Box

August to SeptemberHoppers, ants, beetles, caddis, small mayfliesFoam hoppers, ants, beetles, small attractors, soft hackles

Reviewed family · report says “Foam hoppers”Grasshopper PatternsHopper patterns share a substantial body and long rear-leg impression, but foam, deer hair, wing construction, and waterline differ widely among named patterns.See family guide

Reviewed family · report says “ants”Ant PatternsAnt patterns can be foam, fur-bodied, winged, or sunken. The narrow waist and paired body lobes matter more than one material recipe.See family guide + 3 more reviewed guides in the Fly Box

October to winterBlue-winged olives and midgesSmall BWO dries, zebra midges, slim nymphs, small streamers

Reviewed pattern · report says “zebra midges”Zebra MidgeLook for a very slim tapered thread body, evenly spaced contrasting wire rib, a small bead, and no tail or wing. The reviewed classic is black with silver wire and a silver bead. Red, olive, brown, glass-bead, jig-hook, resin-coated, or tailed forms must remain labeled variations rather than replacing the classic identity.See photos & how to fish it

Reviewed family · report says “Small BWO dries”Blue-Winged Olive PatternsBWO describes a hatch group, not one fly. Nymph, emerger, dry, cripple, and spinner profiles must stay separate because they occupy different parts of the water column.See family guide + 2 more reviewed guides in the Fly Box

Treat the upper Madison as a lane-by-lane river. Pick one riffle, identify the soft edge, and fish each depth before moving.

A dry-dropper is a strong searching rig when flows are approachable. Use a buoyant attractor and adjust dropper depth often.

For nymphing, use enough weight to tick bottom occasionally, but avoid dragging heavy rigs through shallow riffle lanes.

During caddis or PMD activity, skate or swing a soft hackle below a dry fly before changing spots.

For streamer fishing, make short, accurate casts to banks, boulders, and color changes rather than blind-casting the whole river.

Access & responsibility

Know the entry. Know the exit.

Use Montana FWP's current fishing regulations and restrictions page before every trip. The Central District has broad year-round opportunities, but Madison River sections can have specific exceptions, boat rules, and temporary warm-water restrictions.

West Yellowstone / park boundary area

Useful for upper-river planning near the USGS gauge. Confirm Yellowstone and Montana boundary rules before fishing.

Raynolds Pass FAS

Montana FWP lists Raynolds Pass on the Madison River with camping, toilet, and gravel ramp facilities.

Lyons Bridge area

A major upper Madison planning landmark and common transition point for float and wade decisions.

Hebgen and Quake Lake corridor

Use this corridor to match flow, road access, and wind. The river changes character around the impounded sections.

Transparent sources

Check the facts behind the plan.

Last material review: 2026-07-06

flowRiverReports: Madison River at West Yellowstone flowUSGS station: Madison River near West Yellowstone, MT safetyNational Weather Service forecast point near West Yellowstone accessMontana FWP Madison River recreation regulationMontana FWP 2026 fishing regulations accessMontana FWP fishing access sites accessMontana FWP stream access in Montana backgroundWikimedia Commons image: Madison River flyfishing

Common questions

Before you leave.

What flow source should I use for the Madison near West Yellowstone?+

Use the RiverReports page for the quick chart and USGS 06037500 as the official station reference.

Is the Madison good for dry flies?+

Yes, especially during caddis, PMD, salmonfly, terrestrial, and fall BWO windows. Dry-dropper fishing is often a practical search method when fish are not visibly rising.

Is the Madison easy to wade?+

Some edges and riffles are approachable, but the river is fast, cold, and slick. Avoid crossings in elevated flows and carry a wading staff.

Do regulations change by section?+

Yes. Check Montana FWP regulations, restrictions, and access-site rules before fishing because section-specific and temporary rules can apply.