September is one of the most underrated months to fly fish in Southwest Montana. The pace of summer begins to slow, the mornings turn crisp, and the rivers take on a completely different feel. For many anglers, it is one of the best times of the year to be on the water.
By late summer, some of the most exciting fly fishing in Montana happens with a big piece of foam tied to the end of your leader. Grasshoppers, ants, beetles, and other terrestrial insects become an important food source for trout, and few things are more exciting than watching a good fish rise and crush a hopper.
Planning a guided fly fishing trip should be exciting—not confusing. Over the years we've answered thousands of questions from anglers planning their first, or fifteenth, trip to Southwest Montana. Here are the questions we hear most often, along with the answers we give every day.
One of the best transitions of the summer is beginning to take shape across Southwest Montana.
After a strong June with good hatches, clear water, and productive fishing, we are now moving into the time of year when trout begin looking for bigger meals along the banks.
Terrestrial season is almost here.
Spring fishing in Montana is moving fast this year. After a busy April on the water, one thing has become very clear: many of our spring hatches are showing up earlier than usual. In fact, we are seeing some bugs about two to three weeks ahead of where they traditionally appear on the calendar.
Mid-May through mid-June is one of the most interesting and unpredictable windows of the Montana fly fishing season. As warmer weather begins melting mountain snowpack, our rivers start to rise, clarity can change quickly, and the fishing picture can look very different from one day to the next.
This is the time of year that keeps us on our toes.
If I had to diagnose the single biggest mistake I see in March and early spring, it’s this: Most anglers fish too fast.
Not casting too fast. Not re-rigging too fast. They drift too fast.
Every spring in Montana, runoff becomes part of the conversation—and for good reason. Typically beginning around mid-May and lasting four to six weeks, snowmelt can change river conditions quickly. Flows rise, clarity shifts, and fishing becomes far more dynamic. This is where experience matters most.
Most anglers approach winter fishing with a summer mindset. That’s usually where the struggle begins. Cold water changes the entire equation. When temperatures drop into the mid-30s to low-40s, trout don’t behave the way they do in June or July. They conserve energy. They hold in softer seams, deeper buckets, and inside bends. They feed — but only when conditions make it worth the effort. This is where winter fishing deserves a reexamination. Success in the colder months isn’t about working harder. It’s about adjusting expectations and understanding how the river behaves when metabolism, water temperature, and light all shift the playing field. And in winter, experience matters more.
Most anglers think improvement comes from fishing more days throughout the season. But the bigger leap often comes from fishing multiple days in a row. There’s a compounding effect that happens on a well-structured multi-day fly fishing trip. Skills sharpen faster. Water reading improves. Timing begins to make more sense. Instead of starting cold each morning, anglers build momentum — and that momentum is where real progress lives.
Professional Guides
Licensed, trained, and experienced.
Enjoyable & Memorable
Satisfaction is our top priority.
All Inclusive
We'll provide everything you need.
MT. Outfitter License #6813
Madison River SRP #60
BH2 SRP #87

Copyright © Montana Trout Wranglers
Get exclusive fly fishing tips, local hatch updates, and early access to promotions.
No spam. We promise.
Ready to Fish?
Spots fill early. Book your fly fishing trip or get in touch with our team today.
Ready to Fish?
Spots fill early. Book your fly fishing trip or get in touch with our team today.