California
Trinity River at Lewiston
Location Snapshot
Trinity River at Lewiston is a regulated northern California tailwater below Lewiston Dam, where cold releases support a gravel-bed salmonid corridor. Rainbow trout are a principal target, while Chinook salmon add a strong migratory component.
Current River Rating
Fair · 57
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?
Consider
Recommended Window
Tuesday, 7:00 AM–10:00 AM
Why
- Air temperature is comfortable for a river trout trip.
- Light wind should make casting and boat control easier.
Favorable Factors
- Recent precipitation has been light.
Timing Evidence
Window confidence: High
Current Readings
- Flow
- 305 CFS
- Gage Height
- 13.79 ft
- Water Temperature
- 49.1 °F
- Observation Time
- Oct 20, 2026, 11:30 AM
Updated recently · USGS station 11525500 · 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
Partly cloudy
Temperature
47°F
Feels like
42°F
Wind
4 mph N
Wind gust
7 mph
Current precipitation
0.00 in
Updated
Oct 20, 2026, 4:30 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 5 AM
Clear
Temp 47°F
Chance 3%
Precip 0.00 in
Wind 5 mph
Tue 9 AM
Overcast
Temp 53°F
Chance 1%
Precip 0.00 in
Wind 4 mph
Tue 1 PM
Overcast
Temp 72°F
Chance 0%
Precip 0.00 in
Wind 7 mph
Tue 5 PM
Overcast
Temp 72°F
Chance 1%
Precip 0.00 in
Wind 5 mph
Tue 9 PM
Overcast
Temp 62°F
Chance 2%
Precip 0.00 in
Wind 7 mph
Wed 1 AM
Overcast
Temp 60°F
Chance 2%
Precip 0.00 in
Wind 7 mph
Four-Day Forecast
Tue, Oct 20
Overcast
High 73°F / Low 45°F
Chance 3%
Precip 0.00 in
Max gust 22 mph
Wed, Oct 21
Drizzle
High 80°F / Low 55°F
Chance 19%
Precip 0.02 in
Max gust 24 mph
Thu, Oct 22
Drizzle
High 58°F / Low 49°F
Chance 41%
Precip 0.14 in
Max gust 6 mph
Fri, Oct 23
Overcast
High 71°F / Low 41°F
Chance 0%
Precip 0.00 in
Max gust 6 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
Rainbow trout are in the mixed fishery on the Trinity River at Lewiston, along with chinook salmon.
Fishery Profile
Documented species you may encounter at Trinity 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
Rainbow Trout
Oncorhynchus mykiss
- Expectation
- Primary
- Population
- Established
- Native status
- native
- Confidence
- High confidence
Chinook Salmon
Oncorhynchus tshawytscha
- Expectation
- Common
- Population
- Established
- Native status
- native
- Confidence
- High confidence
Fishery characteristics
- Composition
- Mixed wild and stocked
Best seasons
- Spring
- Summer
- Fall
Common techniques
- Drift fishing
- Fly fishing
- Spinning
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
California
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
Target Species
Rainbow Trout, Chinook Salmon
Access, Parking, and Regulations
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