Yellowstone River locals are waking up to classic fall fishing weather—chilly but mostly sunny, with highs topping out in the low 50s, dropping to the 20s at night according to the latest National Weather Service and AccuWeather updates. Water temps are holding steady between 61 and 67 degrees, which is just right for those hungry rainbows and browns coming out to feed as the seasons change. Sunrise hit at 7:50 AM, sunset’s right around 6:21 PM, giving anglers a full day to work those runs and riffles.
No tides to worry about here in Montana, so it’s all about river flows and temperature. U.S. Geological Survey numbers have Yellowstone running at a comfortable 1,580 CFS near Livingston—a bit lower, clear, and very “trouty,” perfect for sight-fishing and watching those pods of risers.
Fish activity has ramped up big time this week: folks are reporting solid days on big valley rainbows, chunky browns, and the occasional fat cutthroat. Popular stretches like the Valley section and above Yankee Jim has given up several healthy fish—including bows pushing 20 inches, and a few colored-up browns ready for fall spawning. Hopper rigs fished tight to the banks have turned heads, but nymphs and streamers are pounding fish in the deeper seams.
On the fly selection, local shops and today’s guides swear by peach and pink hoppers (sizes 8–14), Purple Bruce, and plenty of grand hoppers and thunderthighs if you’re drifting big foam. Floating ant patterns have been lights-out, especially by mid-morning. For subsurface work, the go-to nymphs are Euro styles like Blow Torch Black and Duracell Bombs in the #12–16 range, plus classic prince nymphs. Black and coffee rubber legs—as always—get the job done, while streamers like Black Leadeye, Yellow Silk Kitty, and the ever-reliable Coffee Sparkle Minnow in #4–6 sizes are moving the biggest fish.
For those after non-fly action, spinning anglers do well with little gold and silver spoons, Mepps spinners, and soft plastics in natural tones. Still, live bait like worms is less productive this week—artificial lures and flies rule the river right now following the Montana Outdoor fall report.
Two hot spots not to miss:
- **Town Stretch at Livingston:** Early-morning hatches and that cooler water pull in big pods. Work inside bends and shallow riffles, but also probe those deeper outside runs with a streamer.
- **Mill Creek Confluence:** The mixing water attracts feisty browns right now, and some surprisingly aggressive cutthroats have been hitting hopper-dropper rigs in the afternoons.
Lastly, river crowds have thinned out but remember to give a little space—a Montana smile and an extra rod length go a long way this season.
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