Wyoming
Green River below Fontenelle Reservoir
Location Snapshot
Green River below Fontenelle Reservoir is a southwest Wyoming tailwater flowing through open sagebrush country before continuing toward Flaming Gorge. Brown and rainbow trout define the coldwater fishery, with regulated releases, long runs, and deeper bends creating a different river character from the upper Green around Warren Bridge.
Current River Rating
Fair · 61
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
Wednesday, 5:00 PM–8:00 PM
Why
- Water temperature is within the preferred trout range.
- 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: Medium
Current Readings
- Flow
- 620 CFS
- Gage Height
- 11.13 ft
- Water Temperature
- 54.5 °F
- Observation Time
- Oct 20, 2026, 11:00 AM
Updated recently · USGS station 09211200 · 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
Clear
Temperature
38°F
Feels like
31°F
Wind
5 mph NE
Wind gust
7 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
Clear
Temp 37°F
Chance 0%
Precip 0.00 in
Wind 4 mph
Tue 10 AM
Clear
Temp 48°F
Chance 1%
Precip 0.00 in
Wind 2 mph
Tue 2 PM
Clear
Temp 63°F
Chance 1%
Precip 0.00 in
Wind 4 mph
Tue 6 PM
Clear
Temp 60°F
Chance 1%
Precip 0.00 in
Wind 4 mph
Tue 10 PM
Mostly clear
Temp 47°F
Chance 1%
Precip 0.00 in
Wind 4 mph
Wed 2 AM
Clear
Temp 41°F
Chance 1%
Precip 0.00 in
Wind 4 mph
Four-Day Forecast
Tue, Oct 20
Overcast
High 64°F / Low 35°F
Chance 2%
Precip 0.00 in
Max gust 7 mph
Wed, Oct 21
Drizzle
High 66°F / Low 36°F
Chance 2%
Precip 0.02 in
Max gust 13 mph
Thu, Oct 22
Showers
High 58°F / Low 48°F
Chance 27%
Precip 0.16 in
Max gust 20 mph
Fri, Oct 23
Drizzle
High 54°F / Low 45°F
Chance 79%
Precip 0.09 in
Max gust 31 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
The Green River below Fontenelle Reservoir is the tailwater from Fontenelle Dam downstream toward the Big Sandy River.
Fishery Profile
Documented species you may encounter at Green 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
Source: Wyoming Game and Fish Department
Rainbow Trout
Oncorhynchus mykiss
- Expectation
- Primary
- Population
- Unknown
- Native status
- introduced
- Confidence
- High confidence
Source: Wyoming Game and Fish Department
Fishery characteristics
- Composition
- Wild
- Great Lakes tributary
- No
- Flow regime
- Tailwater
Best seasons
- Spring
- Summer
- Fall
Common techniques
- Dry flies
- Fly fishing
- Nymphing
- Spinning
- Streamers
Official sources
Hatch Match
Loading hatch suggestions…
Location and Access
USGS monitoring location
Sweetwater, Wyoming
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
Sweetwater
Management Category
Wild trout river
Regulation Scope
Green River below Fontenelle Reservoir.
Regulation Summary
Green below Fontenelle: WGFD Area 4 Fontenelle tailwater exceptions (seasonal dam-to-gauge closure; trophy flies-and-lures water downstream of Road 8). Confirm current Chapter 46.
Target Species
brown-trout, rainbow-trout
Access, Parking, and Regulations
Loading access and regulations…