Fishing: Good | Water: Clear & Dropping | Fall Conditions Are Here
Fall is settling into the Bitterroot Valley, and the river is shaping up nicely. Cooler nights have brought water temperatures down, recent higher flows are receding, and we're entering one of our favorite stretches of the fishing season.
The Bitterroot near Darby is currently running around 479 CFS, which is above the historical median for September 14. Water temperature was approximately 56°F early this morning, giving us excellent trout-friendly temperatures and considerably more comfortable fishing conditions than we saw during the heat of summer.
Current Fishing Conditions
The river has continued to settle after the recent bump in flows, and clarity has improved as water levels come back down. These cooler temperatures and additional water have helped put the Bitterroot into good early-fall shape.
Tricos remain an important part of the morning program. Keep an eye on slower slicks, foam lines, back eddies, and softer inside water for rising fish. These fish have seen plenty of flies by September, so longer leaders, lighter tippet, and accurate presentations can make a big difference.
As the morning progresses, we're transitioning toward the fall mayfly game. Hecubas and Mahoganies are becoming increasingly important, and Baetis should continue to improve as we get cooler and cloudier fall weather. October Caddis are also beginning to enter the picture.
Don't overlook terrestrials during the warmer part of the afternoon. Hoppers, ants, and beetles can still move good fish, particularly along grassy banks and structure.
What We're Fishing
Dry Flies: Tricos, Hecubas, Mahoganies, Baetis, parachute mayflies, ants, beetles, hoppers and October Caddis.
Nymphs: Small mayfly nymphs, Perdigons, pheasant tails, jig-style attractors and stonefly nymphs.
Streamers: Olive, black, tan and natural-colored patterns. Focus on deeper banks, structure, buckets and slower water adjacent to faster current.
Guide's Take
This is the beginning of one of the best times of year to fish the Bitterroot. Cooler water allows us to fish more of the day again, crowds begin to thin out, and the river starts transitioning from the summer terrestrial game into the technical dry-fly fishing we look forward to every fall.
For the dry-fly angler, pay attention to the weather. Bright afternoons can make the fishing more technical, while cool, overcast days can produce excellent mayfly activity and some of the best opportunities of September.
Best Bet: Start with Tricos in the morning, transition into Hecubas, Mahoganies and terrestrials as the day develops, and keep Baetis patterns ready whenever clouds roll into the valley.
Book a Fall Bitterroot River Trip
September and October offer some of our favorite guided fishing of the year. Cooler temperatures, beautiful fall colors, lighter fishing pressure and increasingly strong mayfly activity make this a great time to experience the Bitterroot.
Give Freestone Fly Shop a call or book your guided Bitterroot River trip online.
