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

  1. Reports
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Oct2026October 2026
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Outlook covers this day

Region

  • All regions
  • North-Central Idaho0
  • Panhandle0
  • Salmon Region11
  • South Central Idaho33
  • Southwest Idaho0
  • Upper Snake / Eastern Idaho11

Rivers & Lakes

  • All waters
  • Big Lost River11
  • Big Wood River11
  • Salmon River11
  • Silver Creek11
  • South Fork Boise River11

Report Type

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  • Conditions315
  • Outlook55

Browse Idaho Fishing Reports

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

Updated October 18, 2026

Filters:OutlookRemove Outlook filter

Showing 21–40 of 55 reports

Filters:OutlookRemove Outlook filter

September 2, 2026

Upper Snake / Eastern Idaho

Big Lost River

Covers Sep 2–9

Expect low, clear water with Tricos and Baetis dominating the hatch. Best fishing runs from midday into late afternoon when temperatures rise enough to concentrate fish and trigger consistent bug activity.

South Central Idaho

Big Wood River

Covers Sep 2–9

The Big Wood enters early September running extremely low and clear, calling for stealth and precision as fish stack in specific lies.

1.7 cfs ↓

Salmon Region

Salmon River

Covers Sep 2–9

The Salmon River is set up well for early September with good conditions across both sections and a mix of mayflies, caddis, and hoppers on the water.

4,190 cfs

South Central Idaho

Silver Creek

Covers Sep 2–9

Silver Creek is running stable flows and prime water temperatures through early September, with morning spinners and afternoon Callibaetis supported by strong terrestrial fishing in the wind.

86 cfs

South Central Idaho

South Fork Boise River

Covers Sep 2–9

The South Fork is floatable near 800 cfs but dropping fast; watch for Flavs, Baetis, and caddis throughout the week.

August 26, 2026

Upper Snake / Eastern Idaho

Big Lost River

Covers Aug 26–Sep 2

Low, clear water through early September demands stealth but rewards mobile anglers with good midmorning dry-fly fishing in runs and edges. Plan your day around morning Tricos and Baetis, and expect slow afternoon action.

No flow

August 19, 2026

Upper Snake / Eastern Idaho

Big Lost River

Covers Aug 19–26

Expect morning Trico and Baetis hatches on the main stem with temporary off-color water from the seasonal turnover; nymphing and subsurface tactics will produce once the hatch clears. Morning temperatures are chilly, so fishing improves as the day warms.

No flow

August 12, 2026

Upper Snake / Eastern Idaho

Big Lost River

Covers Aug 12–19

Low flows make the Big Lost challenging but rewarding for anglers willing to fish small and precise. Morning Tricos give way to hoppers and selective mayfly patterns as the water warms.

No flow

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South Central Idaho

Big Wood River

Covers Aug 26–Sep 2

The Big Wood is low and clear through early September with multiple hatches in play and cooler temperatures arriving. Adapt your patterns as fall conditions develop.

1 cfs ↓

Salmon Region

Salmon River

Covers Aug 26–Sep 2

Low flows and warm water define the Salmon in late August as spawning protections take effect and the float season ends. Fish hoppers and caddis at dawn to avoid thermal stress.

3,410 cfs ↓

South Central Idaho

Silver Creek

Covers Aug 26–Sep 2

Cooler weather has improved Silver Creek after summer doldrums. Clear water and stable flows near 93 cfs should hold good hatches and terrestrial action through early September.

93 cfs

South Central Idaho

South Fork Boise River

Covers Aug 26–Sep 2

The South Fork is running cool and steady with prime conditions for wading as float season winds down. Expect Baetis, pinks, and terrestrials through early September as flows begin to taper.

South Central Idaho

Big Wood River

Covers Aug 19–26

The Big Wood is improving as cooler water moves in, though low flows demand a mobile approach and selective presentation to wary larger trout.

735 cfs ↑

Salmon Region

Salmon River

Covers Aug 19–26

Floating and fishing restrictions protect spawning salmon on the Salmon River through late August. Expect warm water and low flows, with spruce moths in the morning and hoppers in the afternoon.

4,020 cfs ↑

South Central Idaho

Silver Creek

Covers Aug 19–26

Stable flows and prime temperatures set up classic Silver Creek fishing this week, with Tricos and Baetis leading the hatch, afternoon Callibaetis possible, and seasonal closures starting August 24.

95 cfs

South Central Idaho

South Fork Boise River

Covers Aug 19–26

Flows are dropping on the South Fork with sparse hatches, but afternoon Pink Alberts, caddis windows, and hoppers offer solid opportunity through late August.

South Central Idaho

Big Wood River

Covers Aug 12–19

The Big Wood is running low and clear through mid-August. Success depends on stealth and exploring less-fished water between access points.

1 cfs ↑

Salmon Region

Salmon River

Covers Aug 12–19

The Salmon will run steady around 3,410 cfs through mid-August with warm water temps signaling thermal stress. Morning hatches of spruce moths, Tricos, and caddis will fish well, along with afternoon hoppers.

3,680 cfs ↓

South Central Idaho

Silver Creek

Covers Aug 12–19

Silver Creek will see stable flows and prime water temps during this outlook period, with late summer hatches including Tricos, Baetis, and afternoon Callibaetis.

92 cfs

South Central Idaho

South Fork Boise River

Covers Aug 12–19

The South Fork is in good shape for the week ahead with cool water and normal flows supporting consistent fishing. Drift boat coverage pairs well with roadside wading, and a mix of afternoon mayflies and all-day caddis should keep you busy.