Wade0/100
Wading is the most sensitive plan today. Use protected edges only, avoid crossings, and downgrade quickly if clarity or current feels wrong.
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Fly fishing report · West
Madison River In Yellowstone Park
Is Madison River In Yellowstone Park worth the trip today? Check flow, weather, hatches, access, and rules for Wyoming before you go.
See the flow chart ↓Photo: James St. John Opens in a new tab. · CC BY 2.0
Good day to fish?Latest river check
Poor
Not today. Make another plan.
22
Best option: Float. A float can fit better than wading only if launches, shuttle, boat skill, wind, and local rules all check out.
See update time and confidence
Live data checkHighHow much of the live flow, weather, and alert data came back.
Today's callHighA verified hard stop is active, so the avoid-or-wait decision is clearer than the fishing score itself.
Score calculated Aug 22, 2026, 8:12 PM MDTUsually checks again about every 45 minutes
Best access methodFloat
These scores compare the risks of wading, bank fishing, and floating.
Bank / edgeNot recommended
This report does not recommend bank fishing on this reach.
Float · Best fit26/100
A float can fit better than wading only if launches, shuttle, boat skill, wind, and local rules all check out.
Water temperature above salmonid stress threshold
Your plan
Today's Madison River In Yellowstone Park plan.
The Madison inside Yellowstone is a highly regulated park fishery. A useful plan checks the permit, open reach, bridge restrictions, fly-only rules, native-fish handling, thermal water, and road conditions before discussing hatches.
- Check first
- A Yellowstone fishing permit is required for anglers 16 and older. State licenses do not replace it.
- Try
- Read the current NPS rule section for the exact reach before rigging.
- Leave when
- Skip the Madison in the park when the reach is not open, the permit or fly-only rules are unclear, water temperatures threaten trout recovery, thermal ground or wildlife makes access unsafe, or road conditions make the chosen pullout impractical.
Live river check
What the river is doing
Check the latest flow and weather before you go. A quick change can make the river harder or less safe to fish.
Showing the latest stored river check while current readings load.
- Flow
- 303 cfs
- From the latest stored river check. Open the official source for the newest reading.Water 73.0°F · 24h high 76.8°F · USGS provisional
- Air now
- 73°F
Current NWS forecast period
- Next 24h high
- 77.0°F
NWS air forecast near
- Rain chance
- 50%
For this forecast period
Latest stored weather check
Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
- Wind
- 6 mph
- Weather checked
Recent flow chart is loading
The latest stored reading is shown above. Check the official source below if you need the newest value now.
More forecast and source details
National Weather Service
Madison River near West Yellowstone
The National Weather Service forecast is temporarily unavailable.
Live data
Where these readings come from
Latest stored USGS gauge: Madison River near West Yellowstone
Water 73.0°F · provisional · 24h high 76.8°F provisionalWater observed · high observed
From the latest stored river check. Open the official source for the newest reading.
How to fish it
How to fish Madison River In Yellowstone Park today.
Best windows are cool mornings, stable flows, and legal open reaches with safe water temperatures. Hot afternoons, road closures, or unclear rule boundaries should push you to a different plan.
Cool stable flow
Best all-around window for dry-dropper fishing and careful nymphing.
Thermal warmth
Fish early, check temperature, and stop before trout handling becomes stressful.
High spring water
Use heavier nymphs on soft edges only where the reach is open and safe.
Low clear water
Lengthen leaders, use small flies, and avoid repeated casts over visible fish.
Fishing words used on this page
- U.S. Geological Survey (USGS) gauge
- A USGS gauge is an official river station that measures flow or water height.
- Cubic feet per second (cfs)
- Cubic feet per second, or cfs, shows how much water passes the gauge each second.
- Nymph
- A nymph is a young water insect. Anglers also use the word for a fly that copies it.
- Seam
- A seam is the line where fast and slow water meet.
- Blue-winged olive (BWO)
- Blue-winged olives, or BWOs, are small mayflies that often hatch in cool or cloudy weather.
- Caddis
- Caddis are small water insects. The adults look a little like tiny moths.
- Dry-dropper
- A dry-dropper rig has a floating fly with an underwater fly tied below it.
- Emerger
- An emerger copies an insect as it rises from below the water toward the surface.
- Midge
- Midges are tiny flies and a common trout food, especially in cold water.
- Pale morning dun (PMD)
- Pale morning duns, or PMDs, are light-colored mayflies that often hatch in warmer months.
Why this call
Why this score
Water temperatureHurts
USGS water temperature is about 73F. USGS marks the temperature data provisional and may revise it. Do not pressure trout or salmonids in warm water.
Best mode nowHurts
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 303 cfs. The flow has been stable over about 6 hours. USGS marks this reading provisional and may revise it. USGS records for this date (1913-2025, 102 readings) show a median near 413 cfs and a low-water marker near 315 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.
Short-term weatherUse caution
The forecast has storm or heavy-precipitation risk, so timing and access matter more than the score alone.
SeasonHelps
Summer: Good hatches and terrestrials, but warm water and crowds require discipline.
Trip notes
Trip notes
Check these before you choose a reach.
Use USGS 06037500 near West Yellowstone as the best live trend near the park boundary. Stable flows with cool water are the best fit. Warm water, thermal influence, storm runoff, or temporary closures should shorten or cancel the plan.
Skip the Madison in the park when the reach is not open, the permit or fly-only rules are unclear, water temperatures threaten trout recovery, thermal ground or wildlife makes access unsafe, or road conditions make the chosen pullout impractical.
Start with the park rule page and rule PDF, then choose the area: Madison Junction for formation context, meadow and roadside water toward the West Entrance for the main plan, or the boundary gauge for flow and temperature context.
If the Madison is warm, crowded, closed, or unsafe, compare the Yellowstone River in the park for another permit-first page, the Madison at West Yellowstone for boundary flow context, or the Snake River for a different park-adjacent cutthroat plan.
What to try
Madison River In Yellowstone Park flies through the year.
Match the time of year, then let rising fish and current speed guide the next change.
SeasonWhat to look forFlies to try
Late May to June
What to look forCold-water midges, BWOs, caddis, and early stoneflies when park water is open
July
What to look forPMDs, caddis, golden stones, Green Drakes in suitable water, and spinner falls
August to SeptemberCurrent
What to look forTerrestrials, ants, beetles, hoppers, small caddis, and evening spinners
October
What to look forBWOs, midges, streamers where legal, and short cold-weather feeding windows
Each fly name opens its matching Fly Box guide.
Access and safety
Madison River In Yellowstone Park access and rules.
Use these places as starting points. Open the access link below and check posted signs before you park or enter. Check Yellowstone National Park fishing rules before fishing. This page does not replace the park permit, open-water dates, fly-only rules, bridge restrictions, or native/nonnative fish handling rules.
Madison Junction
Key orientation point where the Madison forms from the Firehole and Gibbon.
West Entrance area
Roadside access with traffic, wildlife, and rule checks.
Park boundary context
Use the USGS West Yellowstone gauge for nearby flow and temperature context.
Fishing from road bridges is restricted in Yellowstone.
Thermal ground and wildlife are real safety issues, not scenery notes.
Temporary closures can change the plan faster than a static report can.
River sources
Official Madison River In Yellowstone Park sources.
Official agencies and primary river operators come first. Secondary tools are labeled so you know what carries the most weight.
How this report was checked
How this report was checked
Reviewed byBlueStreamFly River Review Team
Trip guidance checked
What was checked: This report is maintained from current regulation, access, flow, weather, and public planning sources so anglers can make better trip decisions than a raw gauge or generic overview would allow.
Live measurements and forecasts keep their provider timestamps. Rules, access, and trip guidance use the source-review date shown here. BlueStreamFly planning advice is editorial interpretation, not an agency notice.
First-hand experience: BlueStreamFly does not claim a first-hand visit or local field test for this report unless a real contributor is explicitly named and linked.
Rules and closures
Check what is allowed, where the rule applies, and whether the river is open.
Flow and weather
Check the latest river reading and forecast before you leave.
Access and land
Check public entry points, land rules, and seasonal access changes.
More helpful links
Use these links for stocking, safety, and other local details.
See all 7 checked sources
Rules and closures
Check what is allowed, where the rule applies, and whether the river is open.
What this source covers
Open the current rules and check the river section, season, and special limits.
What this source covers
Open the current rules and check the river section, season, and special limits.
Flow and weather
Check the latest river reading and forecast before you leave.
What this source covers
Open this page and check the latest safety advice before your trip.
What this source covers
Open this river reading to check the latest level, flow, and update time.
Access and land
Check public entry points, land rules, and seasonal access changes.
What this source covers
Open the land or access page, then check signs before you park or enter.
More helpful links
Use these links for stocking, safety, and other local details.
What this source covers
Open this page for more river information and check when it was last updated.
What this source covers
Open this page and check the latest safety advice before your trip.
Quick answers
Quick Madison River In Yellowstone Park answers.
What should I check before fishing Madison River In Yellowstone Park?
Yellowstone fishing permit, 2026 park rules, road status, warm-water closures, USGS flow, and weather
Which flow should I use for Madison River In Yellowstone Park?
Use USGS 06037500 near West Yellowstone for flow and temperature context, then check park closures and reach rules before fishing.
Where should I start on Madison River In Yellowstone Park?
Start with Madison Junction and the West Entrance area, but only after confirming the open reach, permit, road status, and bridge restrictions.
Can I wade Madison River In Yellowstone Park?
Yes in some meadow and roadside reaches at safe flows, but thermal ground, wildlife, and slippery channels make cautious wading essential.