Blackfoot River Fly Fishing Report - November 1, 2026

Fly Fishing Report

BLACKFOOT RIVER

Report
NOV 1 — 8, 2026
🌊
Flow
655CFS
Blackfoot River near Bonner MT
🌡️
Water Temp
42.1°F
Updated 2026-10-31
☀️
Weather
35–50°F
Mostly Cloudy
💧
Clarity
Clear
Check post-storm
Water is a cold 42.1°F at 655 cfs and running clear, pushing trout tight to deeper runs and slow-water seams; flow is down slightly from last week's 676 cfs and holding in fishable shape ahead of today's rain.
Best Time Window
  • 10 AM - 12 PM: Pre-rain midge and BWO nymphing in deep pools before cloud cover thickens.
  • 12 PM - 2 PM: Prime midday hatch window — watch tailouts for rising fish and be ready with a dry or emerger.
  • 2 PM - 4 PM: Streamer time along undercut banks and deep runs as light fades and big browns move to feed.
Guide's Tip
From the benchWith water at 42°F, trout metabolism is slow and fish are stacked in the deepest, slowest water they can find — think long, dark pools and the inside seams of big bends rather than riffles. Set your indicator depth so your flies are ticking within 6 inches of the bottom, and slow your drift down as much as possible. The best window today will be the midday rain lull between roughly 11 AM and 2 PM when BWOs and midges get active; watch for subtle surface dimples in the tailouts and be ready to drop down to 6X tippet and a size 22. If the rain picks up and surface activity shuts off, switch to the Sparkle Minnow Sculpin and work the deep undercut banks — November is prime time for big brown trout on streamers.
Main Species
Westslope Cutthroat Trout
Brown Trout
Rainbow Trout
Report generated November 1, 2026 — Next update: November 8, 2026