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© 2026 Barbless.co. Flow and gauge data from USGS; weather from Open-Meteo. · v2026.10.18.2

  1. Reports
  2. Browse
Oct2026October 2026
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Region

  • All regions
  • North-Central Idaho85
  • Panhandle94
  • Salmon Region10
  • South Central Idaho35
  • Southwest Idaho9
  • Upper Snake / Eastern Idaho85

Rivers & Lakes

  • All waters
  • Big Lost River1
  • Henrys Fork of the Snake River9
  • Henrys Fork of the Snake River, Box Canyon to Riverside13
  • Henrys Fork of the Snake River, Riverside to Mouth / terminus7
  • Henrys Lake6
  • Island Park Reservoir1
  • Mackay Reservoir1
  • Snake River, Osgood Diversion Dam to Henrys Fork1
  • South Fork Snake River36
  • Teton River10

Report Type

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  • Conditions85
  • Outlook11

Browse Idaho Fishing Reports

Current conditions, flows, and hatch notes for Idaho rivers: updated as new reports are published.

Updated October 19, 2026

Filters:Upper Snake / Eastern IdahoRemove Upper Snake / Eastern Idaho filterConditionsRemove Conditions filterClear all

Showing 61–80 of 85 reports

Filters:Upper Snake / Eastern IdahoRemove Upper Snake / Eastern Idaho filterConditionsRemove Conditions filterClear all

July 31, 2026

Upper Snake / Eastern Idaho

South Fork Snake River

Mutant stones are emerging on the South Fork with flows holding steady around 5,950 cfs. Early and late windows offer the best action for stone patterns.

5,860 cfs ↓

Upper Snake / Eastern Idaho

Teton River

The Teton is running low with clear skies and warm temperatures; target deeper pockets and shaded areas during peak heat.

6 cfs

July 30, 2026

Upper Snake / Eastern Idaho

South Fork Snake River

Lower flows have eased access on the South Fork, but heat makes fish selective, fish early and late when hatches are active.

7,520 cfs ↓

July 24, 2026

Upper Snake / Eastern Idaho

Henrys Fork of the Snake River

The Henrys Fork is steady and slightly below normal with clear skies and manageable flows for mid-summer fishing.

1,720 cfs ↓

July 23, 2026

Upper Snake / Eastern Idaho

South Fork Snake River

Flows have eased to 5,950 cfs, opening fresh wading water on the South Fork. Golden Stones and PMDs are active, but expect selective fish and plan your best efforts for low-light periods.

8,510 cfs

July 18, 2026

Upper Snake / Eastern Idaho

Henrys Fork of the Snake River, Box Canyon to Riverside

Flows have jumped recently, making conditions mixed across the stretch. Mormon Crickets dominate the bite alongside solid Golden Stone, PMD, and Caddis hatches.

1,480 cfs

July 1, 2026

Upper Snake / Eastern Idaho

Big Lost River

The Big Lost River is fishing great across both upper and lower sections, with strong Golden Stonefly, Little Yellow Sally, and PMD hatches in play.

June 12, 2026

Upper Snake / Eastern Idaho

Henrys Fork of the Snake River

Normal flows and stable conditions on the Henrys Fork make it a reliable choice right now. Expect steady water with clarity holding up through the near term.

1,460 cfs ↑

June 6, 2026

Upper Snake / Eastern Idaho

Henrys Fork of the Snake River, Box Canyon to Riverside

Golden stones and heavy evening caddis are fueling steady improvement on the upper Henrys Fork. Expect Green Drakes to emerge soon.

Page 4 of 5

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Upper Snake / Eastern Idaho

Henrys Fork of the Snake River, Box Canyon to Riverside

The Henrys Fork is productive but winding down, with flows now manageable for wading. Caddis, PMD, and terrestrials dominate; seek cleaner water in select areas.

1,080 cfs ↓

Upper Snake / Eastern Idaho

Henrys Fork of the Snake River, Riverside to Mouth

The lower Henrys Fork is firing for hoppers with stable flows and clear conditions. Fish early or late to beat the heat.

1,720 cfs ↓

Upper Snake / Eastern Idaho

Henrys Lake

Henrys Lake fishes best early and late season with knowledge of spring locations and boat access. Key patterns include leeches, chironomids, and cocktail nymphs.

Upper Snake / Eastern Idaho

South Fork Snake River

The South Fork is stable and fishing well despite the big stonefly season winding down. Mutant Stoneflies and PMDs are worth throwing as flows hold above normal.

8,490 cfs

Upper Snake / Eastern Idaho

Teton River

Low, clear flows and cool mornings make the Teton a prime technical fishery right now. Watch water temperature closely and focus morning hours.

3 cfs

Upper Snake / Eastern Idaho

Teton River

A strong emergence window featuring Pale Morning duns, Western Green drakes, Salmon flies, and Spotted Sedge caddis. Low flows concentrate fish in slower water.

No flow

Upper Snake / Eastern Idaho

Henrys Fork of the Snake River, Riverside to Mouth

Strong Golden Stone action and stable flows make the Henrys Fork a solid choice right now, with boats reporting consistent daily results.

2,110 cfs

Upper Snake / Eastern Idaho

Henrys Lake

Hot conditions have fish seeking cooler water at springs and creek mouths. Key patterns include leeches, scuds, chironomids, and damselflies.

Upper Snake / Eastern Idaho

Mackay Reservoir

Mackay Reservoir was holding at 60 feet with steady 400s cfs releases and predictable weekly drawdown. Fish nymphs, dryflies, and streamers depending on conditions.

Upper Snake / Eastern Idaho

South Fork Snake River

Excellent clarity and dropping flows have primed the South Fork for major mayfly and stonefly hatches expected within days. Fish are actively feeding on nymphs now.

5,240 cfs ↓

Upper Snake / Eastern Idaho

Teton River

Low flow conditions across the Teton system. Focus on deeper pockets and shaded water to find active fish.

108 cfs ↓