Stillwater River Fly Fishing Report - November 8, 2026

Fly Fishing Report

STILLWATER RIVER

Report
NOV 8 — 15, 2026
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Flow
414CFS
Stillwater River near Absarokee, MT
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Water Temp
—
Updated 2026-11-08
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Weather
36–68°F
Mostly Cloudy
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Clarity
Clear
Check post-storm
The Stillwater River near Absarokee is running at 414 cfs with a gauge height of 1.57 ft — low and clear conditions that demand precise presentations and fine tippet. Mild temps topping out near 68°F today with a SSW breeze will push a solid BWO hatch through the afternoon window.
Hatch Chart
Insect Size Activity Prime Time
Blue-Winged Olive (Baetis) 20-22 Heavy 11 AM - 3 PM
Midge 20-22 Moderate 9 AM - 12 PM
Stonefly (Little Brown) 12-14 Light 10 AM - 1 PM
Sculpin / Streamer Forage 4-6 Moderate 7 AM - 10 AM
Spawning Brown Trout Activity N/A Moderate All Day
Best Time Window
  • 7 AM - 10 AM: Early streamer and heavy nymph bite — target deep slots and undercut banks before the sun hits the water.
  • 11 AM - 3 PM: Prime BWO hatch window — switch to dries and emergers in tailouts and flat runs as fish begin rising.
  • 4 PM - Dusk: Swing streamers and strip sculpin patterns through the lower runs as light drops and big browns become aggressive.
Guide's Tip
From the benchWith flows at 414 cfs and gin-clear water, stealth is everything today — stay low, approach from downstream, and keep your shadow off the water. During the BWO hatch window (11 AM to 3 PM), switch to a 5X or 6X fluorocarbon tippet and focus on the flat tailouts where fish will be visibly rising. Early morning, run a heavy nymph like the Thread Frenchie or Rainbow Warrior along the bottom of deeper slots and undercut banks where pre-spawn browns are staging — keep your indicator set at 1.5x the water depth and watch for subtle dips. As light fades in the evening, tie on the Sparkle Minnow Sculpin and work it with short, erratic strips along the far bank — the mild temps today mean fish will stay active well into the afternoon.
Main Species
Rainbow Trout
Brown Trout
Yellowstone Cutthroat Trout
Report generated November 8, 2026 — Next update: November 15, 2026