Montana
Gallatin River at Logan
Location Snapshot
By Logan, the Gallatin has left its steep mountain canyon and become a broader valley river nearing its junction with the Madison and Jefferson. Brown and rainbow trout remain important targets, while deeper runs and warmer lower-river habitat give this reach a different character from the upper Gallatin.
Current River Rating
Fair · 59
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
- Current conditions do not support a reliable fishing window.
- 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
- 587 CFS
- Gage Height
- 4.91 ft
- Water Temperature
- Not available
- Observation Time
- Oct 20, 2026, 9:00 AM
Updated recently · USGS station 06052500 · 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
43°F
Feels like
36°F
Wind
3 mph SE
Wind gust
3 mph
Current precipitation
0.00 in
Updated
Oct 20, 2026, 3:45 AM
Recent Rainfall
Estimated precipitation near this gauge
Last 6 hours
0.00 in
Last 24 hours
0.00 in
Last 48 hours
0.00 in
Little recent rainfall near this river.
Next 24 Hours
Tue 4 AM
Overcast
Temp 43°F
Chance 0%
Precip 0.00 in
Wind 4 mph
Tue 8 AM
Clear
Temp 39°F
Chance 0%
Precip 0.00 in
Wind 4 mph
Tue 12 PM
Overcast
Temp 55°F
Chance 0%
Precip 0.00 in
Wind 3 mph
Tue 4 PM
Overcast
Temp 65°F
Chance 0%
Precip 0.00 in
Wind 5 mph
Tue 8 PM
Overcast
Temp 51°F
Chance 0%
Precip 0.00 in
Wind 5 mph
Wed 12 AM
Overcast
Temp 47°F
Chance 0%
Precip 0.00 in
Wind 3 mph
Four-Day Forecast
Tue, Oct 20
Overcast
High 65°F / Low 37°F
Chance 0%
Precip 0.00 in
Max gust 13 mph
Wed, Oct 21
Overcast
High 70°F / Low 40°F
Chance 2%
Precip 0.00 in
Max gust 20 mph
Thu, Oct 22
Overcast
High 71°F / Low 47°F
Chance 21%
Precip 0.00 in
Max gust 5 mph
Fri, Oct 23
Showers
High 56°F / Low 40°F
Chance 90%
Precip 0.35 in
Max gust 27 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
Wild brown and rainbow trout are in the Gallatin River at Logan.
Fishery Profile
Documented species you may encounter at Gallatin 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: Montana Fish, Wildlife & Parks
Rainbow Trout
Oncorhynchus mykiss
- Expectation
- Primary
- Population
- Unknown
- Native status
- introduced
- Confidence
- High confidence
Source: Montana Fish, Wildlife & Parks
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
Gallatin, Montana
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
Gallatin
Management Category
Wild trout river
Regulation Scope
Gallatin River at Logan / lower Gallatin.
Regulation Summary
Lower Gallatin at Logan: FWP Central District regulations unless an Exception applies. Confirm current closures.
Target Species
Brown Trout, Rainbow Trout
Access, Parking, and Regulations
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