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South Fork Boise River

Fishable399 CFSIntermediate

Live Conditions

South Fork Boise River — Near Anderson Ranch Dam

Fishable
399CFS
Discharge
5.49ft
Gauge Height
—
Water Temp
Updated 1 hr agoView on USGS ↗

7-Day Flow

→ Stable

RisingFallingStable

24-Hr Pressure

26.27 inHg · → High/stable

Falling (good)RisingHigh/stable

Local Weather

46°FClear sky
Wind 7 mph26.27 inHg  Low & stable

Tough conditions — fish deep

Today

🌧️

Rain

60° / 44°

0.08"

Tomorrow

🌦️

Drizzle

52° / 43°

0.13"

Mon

☁️

Overcast

57° / 39°

Tue

☁️

Overcast

58° / 43°

Cold front incoming — go deep with nymphs, surface activity likely slow.

Weather by Open-Meteo · No API key · Updated every 30 min

What should I fish today?

⚡ AI

AI-powered recommendation using today's live flow, temperature, and hatch data.

9

Time of Day

Using: 399 CFS · Midges dominant. BWOs on mild afternoons. Streamer fishing for spawning browns — RESPECT REDDS. Tailwater stays open while ID freestones freeze.

What should I pack?

Rod, flies, tippet, and safety gear specific to today's South Fork Boise River conditions.

🪰 Hatch Calendar

South Fork Boise River · November · Late Fall

Full calendar →

Showing typical dates — water temperature data unavailable for live hatch predictions.

Select month

JanDec

Midges dominant. BWOs on mild afternoons. Streamer fishing for spawning browns — RESPECT REDDS. Tailwater stays open while ID freestones freeze.

Blue-Winged OliveMidgeStreamer

River Map

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USGS Gauge (click for site ID)Fishing Access / SectionScroll to zoom disabled — use map controls

About South Fork Boise River

Cold tailwater below Anderson Ranch Dam in the Boise National Forest. Heavy hatches and consistent flows produce excellent rainbow and brown trout fishing in a remote canyon — famous for the Pink Albert (PMD) hatch.

Pink AlbertCaddisPale Morning DunBlue-Winged OliveHopperStonefly

Regulations

Catch-and-release only for rainbow trout below Anderson Ranch Dam, with artificial lures only in the special-regs section. Idaho fishing license required. Verify current regs at idfg.idaho.gov before fishing.