Yellowstone National Park Fishing Report - October 15, 2026
Last weekend's storm delivered exactly what we've been waiting for in Yellowstone National Park, with cold, gray skies and snow setting the stage for some outstanding fall fishing. Baetis hatches came alive, and migratory trout activity continues to build as we move deeper into October. Sunshine and warmer afternoons will change the game a bit this weekend, but there's still plenty of great fishing to be had. With just over two weeks remaining before the Park closes to fishing on October 31, now's the time to make the most of these late-season opportunities.
HERE ARE THIS WEEK'S STANDOUTS.
FIREHOLE RIVER
The Firehole came alive with Baetis hatches and rising trout during last weekend's storm. Bright skies and warmer afternoons will likely make dry fly opportunities more sporadic in the coming days, though it's still worth keeping an eye out for localized afternoon hatches.
In the meantime, break out those soft hackles and enjoy some of the best swing fishing found anywhere. When the clouds return early next week, look for dry fly opportunities to improve as well.
MADISON RIVER
Scuzzy weather was just what we needed to reignite fall fishing on the Madison in the Park. Fall-run browns and rainbows are making their way up from Hebgen Lake, and we should continue to see more fish filtering into the river as October rolls along.
With brighter conditions ahead, expect the best opportunities to swing soft hackles or strip streamers to come early and late in the day. Nymphing deep runs and holding water should remain a solid bet when the sun is high. Keep an eye on the forecast for early next week, as another round of low light and unsettled weather could have those big fall-run trout feeling a little more rambunctious.
GALLATIN RIVER
The Gallatin in the Park should be a great option for anglers looking to spend a sunny afternoon picking apart pocket water with nymphs. Small Baetis and caddis patterns fished through deeper pockets, runs, and pools will provide consistent action once the day warms up a bit.
There's no need to rush out at first light, either. The Gallatin makes a great complement to a morning or evening spent chasing migratory trout on the Madison. Spend the middle of the day working your way through the pocket water, and keep an eye out for the occasional rising fish in softer seams and along undercut banks.
Cloud cover early next week could bring more meaningful afternoon Baetis activity and some fun dry fly opportunities into the mix.
GIBBON RIVER
The Gibbon below Gibbon Falls will be a fun option for anglers looking to target larger trout moving up from Hebgen Lake. The recent storm likely encouraged a few more fish into the system, and the deeper pockets, slots, and softer edges throughout this stretch are all worth a careful look.
Bright skies will make these fish a little tougher to approach, but nymphing deep or working small, heavily weighted streamers through the pocket water should still produce opportunities. The resident brown trout population will keep things interesting between encounters with larger fish, and the prospects should only improve with the next round of scuzzy weather.
