Montana ·
Blackfoot River Fly Fishing Report - November 1, 2026

BLACKFOOT RIVER
ReportNOV 1 — 8, 2026
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Flow
655CFS
Blackfoot River near Bonner MT
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Water Temp
42.1°F
Updated 2026-10-31
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Weather
35–50°F
Mostly Cloudy
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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.
What's Working — Hot Flies

Juju Baetis Tungsten #22
#22

BWO WD-40 #22
#22

Parachute - Blue Wing Olive #22
#22

Barr's Flashback Emerger - BWO #22
#22

Black Zebra Midge(TBH) #20
#20

Olsen's Peacock Blowtorch Barbless #22 - 24
#22-24

Egan's Thread Frenchie Jig - Olive #12
#12

Egan's Frenchie #12
#12

Soft Hackle Pheasant Tail Jig - Barbless #12
#12

Tungsten Rainbow Warrior - Extra Heavy #14
#14

Coffey's CH Sparkle Minnow Sculpin #6
#6

Egan's GTI Caddis - Olive #12
#12
Hatch Chart
| Insect | Size | Activity | Prime Time |
|---|---|---|---|
| Blue-Winged Olive (Baetis) | #20-22 | Moderate | 11 AM - 3 PM |
| Midge | #20-22 | Heavy | 10 AM - 4 PM |
| October Caddis (late stragglers) | #10-12 | Light | 1 PM - 4 PM |
| Stonefly (small winter) | #16-18 | Light | 12 PM - 3 PM |
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
