California
Trinity River at Lewiston
Current River Rating
Fair · 54
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
Saturday, 4:00 PM–7:00 PM
Why
- Air temperature is comfortable for a river trout trip.
- Light wind should make casting and boat control easier.
- Very clear skies may make trout more cautious in shallow water.
Favorable Factors
- Recent precipitation has been light.
Timing Evidence
Window confidence: High
Current Readings
- Flow
- 1180 CFS
- Gage Height
- 14.98 ft
- Water Temperature
- 49.8 °F
- Observation Time
- Sep 5, 2026, 7:30 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
Clear
Temperature
53°F
Feels like
51°F
Wind
0 mph SW
Wind gust
2 mph
Current precipitation
0.00 in
Updated
Sep 5, 2026, 12:45 AM
Recent Rainfall
Estimated precipitation near this gauge
Last 6 hours
0.00 in
Last 24 hours
0.00 in
Last 48 hours
0.05 in
Little recent rainfall near this river.
Next 24 Hours
Sat 1 AM
Clear
Temp 53°F
Chance 0%
Precip 0.00 in
Wind 1 mph
Sat 5 AM
Clear
Temp 50°F
Chance 0%
Precip 0.00 in
Wind 1 mph
Sat 9 AM
Clear
Temp 57°F
Chance 0%
Precip 0.00 in
Wind 2 mph
Sat 1 PM
Mostly clear
Temp 73°F
Chance 1%
Precip 0.00 in
Wind 2 mph
Sat 5 PM
Overcast
Temp 75°F
Chance 4%
Precip 0.00 in
Wind 7 mph
Sat 9 PM
Mostly clear
Temp 64°F
Chance 4%
Precip 0.00 in
Wind 5 mph
Four-Day Forecast
Sat, Sep 5
Overcast
High 76°F / Low 49°F
Chance 5%
Precip 0.00 in
Max gust 13 mph
Sun, Sep 6
Mostly clear
High 76°F / Low 50°F
Chance 10%
Precip 0.00 in
Max gust 16 mph
Mon, Sep 7
Clear
High 86°F / Low 46°F
Chance 0%
Precip 0.00 in
Max gust 4 mph
Tue, Sep 8
Overcast
High 85°F / Low 55°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
USGS streamgage 11525500 (Trinity River at Lewiston). Coordinates are the USGS monitoring-location point. Existing Estimated-candidate launch identity is preserved even if live water temperature is now present; this batch does not silently upgrade the accepted class. This destination is the named Lewiston Dam Trinity River tailwater, not Trinity Lake.
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
Fishery overview
Lewiston Dam Trinity River tailwater is a major public steelhead, salmon, and trout fishery. Existing Estimated-candidate launch identity is preserved.
Target species
Rainbow Trout
Oncorhynchus mykiss
- Expectation
- Primary
- Population
- Established
- Native status
- native
- Confidence
- High confidence
Trinity River steelhead / rainbow trout are the defining Lewiston tailwater target.
Chinook Salmon
Oncorhynchus tshawytscha
- Expectation
- Common
- Population
- Established
- Native status
- native
- Confidence
- High confidence
Trinity River Chinook are a CDFW-managed anadromous target; confirm season.
Fishery characteristics
- Composition
- Mixed wild and stocked
Regulated Trinity River tailwater below Lewiston Dam.
Best seasons
- Spring
- Summer
- Fall
Common techniques
- Drift fishing
- Fly fishing
- Spinning
Access and Public Fishing Rights
Public access exists around Lewiston. Catalog coordinates are the USGS gage, not a put-in pin.
Stocking information
Confirm current CDFW Trinity River anadromous notices.
Official sources
Trinity anadromous rules change. Verify current CDFW regulations.
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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