Green River Fly Fishing Report - October 27, 2026

Fly Fishing Report

GREEN RIVER

Report
OCT 27 — NOV 3, 2026
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Flow
1910CFS
GREEN RIVER NEAR GREENDALE, UT
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Water Temp
49.6°F
Updated 2026-10-27
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Weather
37–56°F
Sunny
💧
Clarity
Clear
Check post-storm
Flow is running at 1,910 CFS with a gauge height of 9.4 ft and water temps at a crisp 49.6°F — classic fall tailwater conditions with clear water and brown trout actively feeding ahead of their late-season spawn.
Hatch Chart
Insect Size Activity Prime Time
Blue-Winged Olive (Baetis) 20-22 Heavy 11 AM - 3 PM
Midge 20-24 Moderate 8 AM - 11 AM
Caddis 18-20 Light 2 PM - 5 PM
Terrestrials (Ants) 16 Light 12 PM - 4 PM
Baetis Nymph 20-22 Heavy 9 AM - 2 PM
Best Time Window
  • 8 AM - 11 AM: Morning midge nymphing in tailouts and slow pools before the sun hits the water.
  • 11 AM - 2 PM: Prime BWO hatch window — switch to dries and emergers as fish begin rising in the flats and seams.
  • 2 PM - 4 PM: Terrestrial and caddis afternoon window along grassy banks before wind gusts make presentation tough.
Guide's Tip
From the benchWith flows at 1,910 CFS and gin-clear water, stealth is everything — stay low, approach from downstream, and use a long 12-14 ft leader tapered to 6X. The BWO hatch will fire hard between 11 AM and 2 PM when the sun warms the water surface; position yourself in the A-section flats and watch for subtle sipping rises in the slower water adjacent to the main current seam. Pre-hatch, run a heavy nymph like the Silver Bullet deep through the bottom of pools where big browns are staging. The SSE wind gusts to 25 mph this afternoon, so get your dry-fly fishing done before 2 PM when the wind picks up and makes presentation difficult.
Main Species
Rainbow Trout
Brown Trout
Colorado River Cutthroat Trout
Report generated October 27, 2026 — Next update: November 3, 2026