Idaho
Boise River below Anderson Ranch Dam
Current River Rating
Unavailable
Not enough local guidance to rate conditions.
Low confidence
Should I Go?
Not Enough Data
Timing Outlook
No reliable fishing window is available with the current data.
Why
- This river does not yet have enough local fishing guidance to assign a rating.
Cautions
- Water temperature is unavailable.
Blocking Factors
- Configured water observations are currently unavailable.
Current Readings
- Flow
- Not available
- Gage Height
- Not available
- Water Temperature
- Not available
- Latest current reading
- Not available
Monitoring temporarily unavailable. · USGS station 13190500 · Direct monitoring location
Readings from past 7 Days
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Historical readings are provided for context. Readings outside the current freshness window are not used to rate current conditions.
Better Nearby Options
Checking nearby StrikeTracks waters…
Preliminary guidance only. Always assess current weather, access, water depth, current speed, and your own ability before entering the river.
Changing Conditions Advisory
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Weather Near Gauge
Current Weather
Overcast
Temperature
58°F
Feels like
56°F
Wind
1 mph NW
Wind gust
2 mph
Current precipitation
0.00 in
Updated
Sep 4, 2026, 11:15 PM
Recent Rainfall
Estimated precipitation near this gauge
Last 6 hours
0.00 in
Last 24 hours
0.02 in
Last 48 hours
0.06 in
Little recent rainfall near this river.
Next 24 Hours
Sat 2 AM
Overcast
Temp 57°F
Chance 22%
Precip 0.00 in
Wind 9 mph
Sat 6 AM
Clear
Temp 55°F
Chance 4%
Precip 0.00 in
Wind 2 mph
Sat 10 AM
Overcast
Temp 61°F
Chance 1%
Precip 0.00 in
Wind 5 mph
Sat 2 PM
Mostly clear
Temp 71°F
Chance 1%
Precip 0.00 in
Wind 12 mph
Sat 6 PM
Clear
Temp 75°F
Chance 2%
Precip 0.00 in
Wind 8 mph
Sat 10 PM
Overcast
Temp 64°F
Chance 4%
Precip 0.00 in
Wind 7 mph
Four-Day Forecast
Sat, Sep 5
Overcast
High 75°F / Low 53°F
Chance 27%
Precip 0.00 in
Max gust 19 mph
Sun, Sep 6
Overcast
High 78°F / Low 57°F
Chance 24%
Precip 0.00 in
Max gust 19 mph
Mon, Sep 7
Showers
High 65°F / Low 52°F
Chance 67%
Precip 0.23 in
Max gust 25 mph
Weather and rainfall are estimated for this river's coordinates. Local conditions can vary, especially in mountainous terrain and during isolated storms.
Recent rainfall can influence river flow, but the timing and magnitude depend on watershed size, soil conditions, upstream reservoirs, and dam releases.
Weather data: Open-Meteo
Historical Flow
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Fishing Overview
South Fork Boise River at Anderson Ranch Dam, Idaho. Monitoring-Backed from USGS 13190500 (live discharge, stage, and water temperature).
Fishery Profile
Documented species you may encounter at Boise River.
Species images are AI-generated illustrations for visual reference and may simplify natural variation. Fishery records are based on the cited agency sources. About fish illustrations
Fishery overview
This identity is the South Fork Boise tailwater below Anderson Ranch Dam. StrikeTracks publishes Monitoring-Backed conditions from USGS 13190500 (live discharge, stage, and water temperature). Distinct from the lower Boise at Glenwood Bridge, Middle Fork Boise near Twin Springs, and Anderson Ranch Reservoir. IDFG Southwest Region special rules for Neal Bridge upstream to Anderson Ranch Dam include no bait, barbless hooks, a spring closure, and a two-trout none-under-20 summer limit. Flow Context remains default-deny. Hatch Match publishes general fly suggestions only.
Target species
Brown Trout
Salmo trutta
- Expectation
- Primary
- Population
- Wild
- Native status
- introduced
- Confidence
- High confidence
IDFG South Fork Boise Neal Bridge-to-Anderson Ranch Dam special rules. USGS 13190500. Distinct from the Boise River at Glenwood Bridge.
Rainbow Trout
Oncorhynchus mykiss
- Expectation
- Primary
- Population
- Unknown
- Native status
- introduced
- Confidence
- High confidence
IDFG South Fork Boise Neal Bridge-to-Anderson Ranch Dam special rules. USGS 13190500. Distinct from the Boise River at Glenwood Bridge.
Fishery characteristics
- Composition
- Wild
- Great Lakes tributary
- No
- Flow regime
- Tailwater
South Fork Boise tailwater between Anderson Ranch Dam and Neal Bridge, a regulated trout river distinct from the Boise River through Boise.
Best seasons
- Spring
- Summer
- Fall
Common techniques
- Dry flies
- Fly fishing
- Nymphing
- Spinning
- Streamers
Access and Public Fishing Rights
Public fishing is documented by IDFG Fishing Planner and Boise National Forest / South Fork Boise access. Catalog coordinates are the USGS dam-site point, not a campground pin.
Stocking information
IDFG manages this South Fork Boise tailwater as a special-rule trout fishery. Confirm any current official stocking separately.
Official sources
IDFG Southwest Region 2025-2027: South Fork Boise from Neal Bridge (FR 189) upstream to Anderson Ranch Dam — no bait, one barbless hook per fly or lure; December 1 through March 31 trout catch-and-release; April 1 through Friday before Memorial Day weekend closed; Saturday of Memorial Day weekend through November 30 trout limit 2, none under 20 inches. Upstream of the dam uses Magic Valley rules. Distinct from Glenwood Bridge 13206000.
Hatch Match
General fly suggestions
- Parachute-style dryGeneral attractor dry family — not a claim that a named mayfly is hatching.
- Pheasant-tail-style nymphGeneral nymph family for trout rivers without destination hatch timing.
- Elk-hair-style dryGeneral dry/attractor family. Pattern choice only — not a report that caddis are hatching.
- Woolly-bugger-style streamerGeneral streamer family. Not a forage or insect Hatch event.
These are general fishing suggestions, not a report of insects currently hatching at this destination.
Location and Access
USGS monitoring location
Elmore, Idaho
The map marker represents the cataloged waterbody or monitoring location and may not indicate legal parking or public access. Confirm access through the official information before visiting.
River Details
County
Elmore
Management Category
Tailwater trout river
Regulation Scope
South Fork Boise River below Anderson Ranch Dam
Regulation Summary
South Fork Boise below Anderson Ranch: IDFG Southwest Region Neal Bridge-to-dam special rules. Confirm current 2025-2027 Fishing Seasons & Rules.
Target Species
rainbow-trout, brown-trout
Access, Parking, and Regulations
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