Is the Madison River fishable right now?

Right now the Madison River is running 1,100 cfs, which rates prime against its prime 800–1,500 cfs band. Today's bite odds are 70 out of 100, with clear skies (0% cloud). These are probabilistic odds from live data, not a guarantee — a sharp change in flow is the variable most likely to slow the fishing.

What is the best month to fish the Madison River?

The best months on the Madison River are September, October, July, August. These combine settled flows in the river's prime band with the season's strongest hatches. Madison River's overall season runs year-round below hebgen; prime july–october.

What flow (cfs) is good for fishing the Madison River?

The Madison River fishes best in roughly the 800–1,500 cfs range (its prime band). It stays fishable from about 600 cfs up toward 2,500 cfs; below that it's low and skinny, and above 2,500 cfs it's typically blown out and off-color. We compare the live USGS discharge to this band on every reading.

Madison River, Montana fishing report — flows, bite odds & best time to fish

Right now the Madison River is flowing 1,100 cfs — right in its prime fishable band. Today's bite odds rate 70/100 (Prime), and the sky looks clear skies.

1,100 cfscurrent flow

800–1,500prime band (cfs)

0%clear skies

Primetoday's read

Best time to fish the Madison River, Montana

The best months on the Madison River are September, October, July, August — when the flow settles into its prime band and the hatches line up, the odds genuinely worth booking around. Today's flow is one data point; the next 7 days below show how the bite window is trending. Plan ahead and book a guide for your dates.

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Know when the Madison River is fishing right

Flows and the bite shift week to week. Leave your email and we'll tell you when the Madison River hits its best window — time to book a guide for your dates.

Flow & bite outlook for the Madison River — the next 7 days

Wed 6 AM 70

Thu 6 AM 70

Fri 6 AM 73

Sat 6 AM 78

Sun 6 AM 84

Mon 6 AM 90

Tue 6 AM 96

Day	Flow (cfs)	Sky	Bite
Wed 6 AM	1,100 ✓	0% · clear skies	70 Prime
Thu 6 AM	1,100 ✓	0% · clear skies	70 Prime
Fri 6 AM	1,100 ✓	11% · clear skies	73 Prime
Sat 6 AM	1,100 ✓	22% · partly cloudy	78 Prime
Sun 6 AM	1,100 ✓	18% · clear skies	84 Prime
Mon 6 AM	1,100 ✓	47% · partly cloudy	90 Prime
Tue 6 AM	1,100 ✓	37% · partly cloudy	96 Prime

A ✓ means the flow sits in the Madison River's prime 800–1,500 cfs band — the season and the moon/solunar windows then move each day's bite odds.

Conditions & the best window

The prime bite is dawn and the last hour of light, strongest around the new and full moon. Today's sky on the Madison River looks clear skies (about 0% cloud) — and an overcast day can actually keep fish looking up. Watch the flow as much as the sky: a sharp change in discharge, up or down, can turn the fish off for a day.

The "$3 Bridge" to Lyons stretch is classic wade water; below Quake Lake the river braids and pockets. When flows climb in spring runoff, drop down to the dam-buffered upper reaches or fish a guided float that reads the clearer seams.

Guided trips & lodges on the Madison River

Links below go to live FishingBooker search results. We're finalizing our affiliate partnership — once active we'll earn a commission on bookings at no extra cost to you. Disclosure.

A guided day on the Madison River typically runs $450–$650 per boat. A local guide who knows the current flow and the productive water is the fastest way onto fish — book ahead for the dates you want.

Guided fly-fishing float trips on the Madison River

FishingBooker · guided trips · from $450

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Half-day walk & wade trips, Madison River

FishingBooker · guided trips · from $293

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Multi-day lodges & guided packages near the Madison River

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These are probabilistic fishability odds, not a guarantee. We build them from live USGS streamflow, each river’s published fishable-flow band, the curated season, and a moon/solunar model — flow and weather can change fast, and even a perfect flow on the right moon can fish slow. Some prime days disappoint; some marginal ones surprise. How we compute the score.