Idaho
Big Wood River at Hailey
Location Snapshot
Big Wood River at Hailey is an Idaho mountain-valley trout river flowing through the Wood River Valley at Hailey. Rainbow and brown trout are the principal targets across riffles, runs, and undercut banks.
Current River Rating
Fair · 56
Conditions are mixed. Review the details below before heading out.
Scores are model-specific and are not directly comparable across water types.
Partial water evidence · Medium confidence
Should I Go?
Wait
Timing Outlook
This timing outlook is informational only; current river conditions remain Fair.
Why
- Very clear skies may make trout more cautious in shallow water.
- Water temperature is unavailable.
Favorable Factors
- Recent precipitation has been light.
- Light wind should make casting and boat control easier.
Timing Evidence
Dawn low light is favorable.
Current Readings
- Flow
- 140 CFS
- Gage Height
- 1.57 ft
- Water Temperature
- Not available
- Observation Time
- Oct 20, 2026, 10:45 AM
Updated recently · USGS station 13139510 · Direct monitoring location
Readings from past 7 Days
Loading readings from the past 7 days…
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
Loading advisory…
Weather Near Gauge
Current Weather
Mostly clear
Temperature
41°F
Feels like
33°F
Wind
8 mph NW
Wind gust
9 mph
Current precipitation
0.00 in
Updated
Oct 20, 2026, 5:30 AM
Recent Rainfall
Estimated precipitation near this gauge
Last 6 hours
0.00 in
Last 24 hours
0.00 in
Last 48 hours
0.00 in
Little recent rainfall near this river.
Next 24 Hours
Tue 6 AM
Overcast
Temp 41°F
Chance 0%
Precip 0.00 in
Wind 8 mph
Tue 10 AM
Overcast
Temp 51°F
Chance 0%
Precip 0.00 in
Wind 6 mph
Tue 2 PM
Mostly clear
Temp 65°F
Chance 1%
Precip 0.00 in
Wind 10 mph
Tue 6 PM
Clear
Temp 63°F
Chance 2%
Precip 0.00 in
Wind 7 mph
Tue 10 PM
Clear
Temp 52°F
Chance 2%
Precip 0.00 in
Wind 3 mph
Wed 2 AM
Clear
Temp 48°F
Chance 4%
Precip 0.00 in
Wind 5 mph
Four-Day Forecast
Tue, Oct 20
Overcast
High 66°F / Low 40°F
Chance 2%
Precip 0.00 in
Max gust 12 mph
Wed, Oct 21
Drizzle
High 65°F / Low 46°F
Chance 24%
Precip 0.03 in
Max gust 15 mph
Thu, Oct 22
Drizzle
High 64°F / Low 49°F
Chance 90%
Precip 0.32 in
Max gust 18 mph
Fri, Oct 23
Showers
High 52°F / Low 42°F
Chance 90%
Precip 0.31 in
Max gust 9 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
Loading historical flow…
Fishing Overview
Wild brown and rainbow trout are in the Big Wood River at Hailey.
Fishery Profile
Documented species you may encounter at Big Wood 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
Target species
Brown Trout
Salmo trutta
- Expectation
- Primary
- Population
- Wild
- Native status
- introduced
- Confidence
- High confidence
Rainbow Trout
Oncorhynchus mykiss
- Expectation
- Primary
- Population
- Unknown
- Native status
- introduced
- Confidence
- High confidence
Fishery characteristics
- Composition
- Wild
- Great Lakes tributary
- No
- Flow regime
- Mixed flow regime
Best seasons
- Spring
- Summer
- Fall
Common techniques
- Dry flies
- Fly fishing
- Nymphing
- Spinning
- Streamers
Official sources
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
Blaine, 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
Blaine
Management Category
Wild trout river
Regulation Scope
Big Wood River at Hailey.
Regulation Summary
Big Wood at Hailey: IDFG Magic Valley Big Wood special-rule sections. Confirm current 2025-2027 Fishing Seasons & Rules.
Target Species
brown-trout, rainbow-trout
Access, Parking, and Regulations
Loading access and regulations…