Upper Madison River Fishing Report
Current Upper Madison River Fly Fishing Report
Updated 05/09/2026
Current Flow: ~ 920 CFS @ Kirby Ranch near Cameron
The Upper Madison River has been fishing well lately and continues to be one of the more reliable options around southwest Montana as runoff starts ramping up on many of the area freestones. While rivers like the Yellowstone and Gallatin are beginning to see significant snowmelt influence, the Upper Madison is still holding together nicely overall thanks to its tailwater characteristics.
That said, we’re definitely getting into that true spring transition period. With temperatures climbing into the 70s and even low 80s over the next stretch, expect changing conditions throughout the day. Warmer weather is going to continue increasing bug activity and fish activity, but it can also start introducing a little more color into certain sections of the river.
The biggest thing to keep an eye on right now is the West Fork near Lyons Bridge. That tributary is usually the first major source of mud on the Upper Madison during runoff periods, and with these warmer temperatures there’s a good chance we start seeing it blow out a little bit during the warmest parts of the day.
Above the West Fork, the river generally stays much cleaner. Water between the lakes and upstream sections can still remain in very good shape even when lower portions pick up some color. Cabin Creek can also occasionally dump in a little bit of mud, but that’s usually short-lived and tends to clear fairly quickly compared to the West Fork.
For the next little bit, expect conditions to vary day to day and even hour to hour depending on temperatures and overnight cooling. This is one of those times of year where it really pays to watch the flows, monitor water clarity daily, and make your decisions based on what the river is doing that particular day.
Fishing-wise, the Upper Madison has continued to produce well. Nymphing remains the most consistent approach, especially during the mornings and before water temps climb too much. Rubberlegs, perdigons, sow bugs, Hare’s Ears, Prince Nymphs, Baetis nymphs, and caddis pupae are all solid options right now. As we continue warming up, expect caddis activity to steadily improve, especially during the afternoons.
If you find yourself fishing any of the slightly off-color water below the West Fork or near tributary inflows, don’t be afraid to fish larger profile flies. Big rubberlegs, stonefly nymphs, San Juan worms, and even dead-drifted streamers can be extremely effective when visibility drops a bit and fish slide toward softer water near the banks.
Streamer fishing has also been decent, particularly during lower light conditions early and late in the day or whenever cloud cover moves in. Smaller sculpin and baitfish patterns fished tight to structure can definitely move fish this time of year, especially as water temps continue warming.
Overall, the Upper Madison is entering a really productive spring window. Fishing should continue to stay good for the near future, but conditions are going to become increasingly dynamic with this warmer weather pattern. Keep an eye on clarity, pay attention to tributary influence, and adjust where you fish based on what the river is doing that day.
Recommended Flies
Nymphs: Perdigon #16–18, Wire Worm, FKA Prince #16-18, Perdibomb #16, , Pat’s Rubberlegs #10–14, Scuds and Sow Bugs #14-18, 20 Incher #12, Caddis Pupa #16, Three Dollar Dip #16-18
Streamers: Sculpzilla (olive or black), Mini Dungeon, Mini Dolly Llama
Dries: BWO Cripple #18, Parachute Adams #16, Jake’s All Season Caddis #14-16, Cornfed Caddis #16, March Brown #12
Learn More About Fly Fishing the Upper Madison River
The Upper Madison River is one of the most iconic trout fisheries in the West and a cornerstone of fly fishing near Bozeman. Flowing out of Hebgen Lake, this tailwater provides cold, consistent flows and excellent water clarity throughout much of the year. Because of this, the Upper Madison remains a dependable option even during spring runoff when many nearby freestone rivers become off-color or difficult to fish.
Known for its healthy populations of wild rainbow and brown trout, the Upper Madison offers a mix of fast riffles, long runs, and classic pocket water that fish well across a variety of techniques. Whether you’re nymphing deeper seams, throwing dry flies during seasonal hatches, or covering water with streamers, the Upper Madison rewards anglers who stay mobile and adapt to changing conditions throughout the day.
Where to Fish the Upper Madison River
The most well-known stretches of the Upper Madison include the “50 Mile Riffle” between Lyon’s Bridge and Ennis, along with easy access points all along the river. These sections offer a wide range of water types and consistent fish populations, making them ideal for both wade anglers and float trips. The entire river provides excellent access and opportunities, with different sections fishing better depending on flows, weather, and time of year.
👉 Explore Our Complete Upper Madison River Fly Fishing Guide
Book a Guided Fly Fishing Trip on the Upper Madison River
A guided fly fishing trip on the Upper Madison River is one of the best ways to experience classic Montana trout fishing while maximizing your time on the water. Our Bozeman fly fishing guides spend countless days each season on the Upper Madison and understand how to adjust flies, techniques, and locations based on current river conditions.
Whether you’re a beginner looking to learn the fundamentals or an experienced angler wanting to dial in your approach, we tailor every trip to your goals. From covering miles of productive water on a float trip to breaking down key holding water while wading, the Upper Madison offers one of the most consistent and rewarding guided fishing experiences in Southwest Montana.