Wyoming fishing reports
184 reports for Wyoming — what's biting, water temps, and where to focus.
Fall turn sets up pre-spawn brown trout window in the Tetons
Late September marks the classic seasonal turn across Yellowstone and Snake River drainage water, as cooling flows push brown trout into pre-spawn staging and more active daylight feeding. Field & Stream's fall live-bait roundup points to a bottom-bouncing minnow rig on a barrel swivel as the standard way to keep bait in the strike zone for big fall browns, a technique built for exactly this stretch of the season.
Wind River and North Platte flows ease into fall trout window
Water temperatures across the Wind River and North Platte drainages are settling into fall range this week. USGS gauge 06258000 reads 64°F on a light 26.7 cfs, gauge 06253000 sits at 62°F on 338 cfs, and the downstream gauge 06236100 runs warmest at 66°F on 542 cfs. That spread is a typical September signature: the smaller, low-volume stretch is running clear and cool, while the higher-flow water downstream still carries a touch more warmth. A fourth station, gauge 06259000, has no current reading.
Yellowstone and Snake headwaters ease into fall feeding rhythm
USGS gauge 06192500 recorded 1,730 cfs and a 57°F reading early Wednesday morning, flows holding at a steady late-summer base stage as the Yellowstone-Snake headwaters ease into the fall transition. A 57-degree read this late in September sits squarely in the range that keeps fish feeding through the day rather than pushing them into dawn-and-dusk-only windows, and stable flow at this level means wading access stays consistent rather than blown out by any late-monsoon bump.
Fall transition arrives for Wind River and North Platte waters
Freshwater fisheries across Wyoming's Wind River and North Platte drainages are settling into the fall transition this week, as cooling mornings begin the seasonal shift that reshapes how fish feed heading into winter. Weed beds that held summer cover are starting to thin, pushing baitfish toward the remaining green growth and deeper structure, a pattern that typically concentrates predatory fish rather than spreading them thin across a lake or reach.
Yellowstone and Snake anglers watch for the fall turnover
Nights are dropping well below daytime highs across the Yellowstone and Snake (Tetons) drainages this week, a hallmark of the region's early-fall turnover. Terrestrial season is winding down while cooling water tends to spread feeding activity across more of the day, a pattern typical for the third week of September in this high-elevation country.
Fall cooldown sets up prime brown trout window on the North Platte
Wyoming's Wind River and North Platte river systems are settling into the heart of the fall transition, with cooling water shifting brown trout out of their late-summer lies and into the more aggressive, pre-spawn feeding pattern that typically carries through September and October. Brook trout in the higher headwater stretches tend to follow the same seasonal cue, tracking shrinking daylight and softer afternoon heat rather than any single trigger. With the moon at First Quarter this week, the early-morning and dusk windows should stay the most productive stretches of the day, with fish sliding deeper once midday light brightens the water.
Cooling flows set up a strong early-fall trout push on the Snake
A USGS gauge in the Snake River system logged 56°F water and 1,690 cfs early this morning (Sept. 17) — comfortable numbers for cutthroat, rainbow, and brown trout as days shorten heading into fall. Our angler-intel feeds didn't return a Yellowstone- or Teton-specific bite report this cycle, so this update leans on typical early-fall patterns for freshwater trout fisheries at this elevation: cooling water concentrates fish in deeper runs and slower seams, terrestrials (hoppers, ants) still get eaten through midday, and brown trout begin showing more aggression as they stage toward their fall spawn. Mountain whitefish tend to hold in slower current this time of year and can round out a day when trout are quiet. The First Quarter moon shouldn't meaningfully shift daytime fishing windows. As always, check current Wyoming regulations before harvesting, and expect flows to keep easing through the week as summer runoff influence fades.
Hopper Bite Holds as Wind River, North Platte Eye Fall Shift
Grasshoppers are still thick along area banks this week, and hopper patterns remain a producer for Wind River and North Platte trout working undercut banks and grassy edges — timing that lines up with Caddis Fly Shop's recent note that grasshoppers become a late-summer staple in trout diets, with fish often moving several feet to eat one off the surface. No direct state-agency, charter, or shop reports specific to Wyoming came through this cycle, so treat the picture below as seasonal expectation rather than confirmed local intel. Typical for mid-September in this region, rainbow and cutthroat trout should still be feeding actively on terrestrials and emerging caddis in the mornings, while brown trout begin shifting toward the aggressive, territorial behavior that precedes their fall spawning run. Flylords Mag's recent trout-handling primer is a good refresher heading into that stretch — quick releases matter more once fish start staging. Water temps and flows weren't available in this update; check a local gauge before you go.
Snake River cutthroat dial in as fall trout window opens
The USGS gauge near Moose is reading 60°F with flow holding around 1,710 cfs as of Sunday night — comfortable, stable water for a mid-September push on the Snake River system draining Grand Teton and Yellowstone country. This sits squarely in the sweet spot of the fall calendar for Snake River fine-spotted cutthroat, which typically key on hopper-dropper rigs and attractor dries through midday before smaller Blue-Winged Olives take over toward evening. Brown trout are entering their seasonal shift toward pre-spawn aggression, a stretch that generally rewards streamer swings along undercut banks and slower seams as October approaches. Rainbows should be working the same runs on nymph rigs, while mountain whitefish remain a steady, underappreciated bottom-bouncing option when the trout bite slows. No storm signals are showing in the data at hand, so stable flows should hold through the week — check the local forecast and current WY regs before heading out.
Hopper Season Fades as Wind River Trout Turn to Streamers
Caddis Fly (OR) flagged it this week: grasshoppers remain a dietary staple for trout as summer winds down, with fish willing to move several feet to eat one off the surface — a pattern that tracks for freshwater fisheries across the Rockies, including the Wind River drainage and the North Platte. No buoy or gauge telemetry came back for this region today, and no charter or shop filed a direct on-the-water report for Wyoming water specifically, so we're leaning on seasonal knowledge rather than a fresh bite report. Mid-September typically means cooling overnight temps, shortening hopper windows to midday, and a gradual shift toward streamer fishing as brown trout begin staging for the fall spawn. Gink and Gasoline's notes on approaching technical, pressured trout water are worth keeping in mind on clear, low-flow stretches this time of year. Check local regulations and current flow reports before you head out — direct field data for this stretch wasn't available in today's feed.
Cooling water sets up prime fall trout window in the Tetons
Our latest gauge reading from site 06192500 puts water at 56°F with flow running 1740 cfs as of this morning — a comfortable range that should keep trout feeding actively through the day rather than pushing them into thermal refuge. No captain or shop report specific to the Yellowstone/Snake corridor came through this cycle, so treat species status below as seasonal expectation rather than a confirmed bite report. Regionally, late-summer into early-fall is prime terrestrial season on freestone water; grasshopper patterns typically stay productive into September, a seasonal note echoed broadly across fly-fishing coverage this time of year (Caddis Fly (OR)). With a new moon overnight, low light windows at dawn and dusk should fish well for cutthroat and browns keying on surface activity before water temps trend down through fall. Check current Wyoming Game and Fish regulations before harvesting, and expect typical September crowds to thin heading into the shoulder season.
Wind River and North Platte Trout Ease Into Fall Feeding Mode
Grasshoppers remain a strong bet for Rocky Mountain trout right now — Caddis Fly (OR)'s recent Hopper Season note points out that trout will move several feet to eat a hopper off the surface in late summer, a pattern that carries over well to freestone water like the Wind River and North Platte drainages heading into early September. No fresh buoy or gauge readings came back for this stretch today, so check a local flow gauge before you head out rather than trusting last week's numbers. Expect the usual early-fall shift: browns starting to color up and feed more aggressively as nights cool, while rainbows and cutthroat still respond to terrestrials and attractor dries through the warmer midday window. Gink and Gasoline's reminder to keep a low profile and stay out of a trout's sightline is worth taking seriously on these typically clear, technical Wyoming flows, where spooked fish shut down fast once they clock an angler on the bank.