Ohio
Great Miami River at Hamilton
Location Snapshot
Great Miami River at Hamilton is a southwest Ohio mainstem reach with a mixed warmwater river fishery. The principal supported target is smallmouth bass, with largemouth bass, channel catfish, and white bass adding additional species variety to the same fishery.
Current River Rating
Good · 84
Conditions look favorable based on the available readings.
Scores are model-specific and are not directly comparable across water types.
Medium confidence
Should I Go?
Go
Recommended Window
Tuesday, 5:00 PM–8:00 PM
Why
- Water temperature is within a broad fishable range.
- Air temperature is comfortable for fishing.
Favorable Factors
- Light to moderate wind should make casting and boat control easier.
- Recent precipitation has been light.
Timing Evidence
Window confidence: Medium
Current Readings
- Flow
- 1810 CFS
- Gage Height
- 63.15 ft
- Water Temperature
- 58.8 °F
- Latest current reading
- Oct 20, 2026, 11:15 AM
Updated recently · USGS station 03274000 · 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
33°F
Wind
4 mph N
Wind gust
6 mph
Current precipitation
0.00 in
Updated
Oct 20, 2026, 7:30 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 8 AM
Clear
Temp 39°F
Chance 0%
Precip 0.00 in
Wind 4 mph
Tue 12 PM
Clear
Temp 60°F
Chance 0%
Precip 0.00 in
Wind 2 mph
Tue 4 PM
Clear
Temp 70°F
Chance 0%
Precip 0.00 in
Wind 3 mph
Tue 8 PM
Clear
Temp 57°F
Chance 0%
Precip 0.00 in
Wind 5 mph
Wed 12 AM
Clear
Temp 50°F
Chance 0%
Precip 0.00 in
Wind 5 mph
Wed 4 AM
Clear
Temp 45°F
Chance 0%
Precip 0.00 in
Wind 3 mph
Four-Day Forecast
Tue, Oct 20
Clear
High 70°F / Low 39°F
Chance 0%
Precip 0.00 in
Max gust 8 mph
Wed, Oct 21
Clear
High 70°F / Low 40°F
Chance 0%
Precip 0.00 in
Max gust 7 mph
Thu, Oct 22
Clear
High 70°F / Low 47°F
Chance 0%
Precip 0.00 in
Max gust 6 mph
Fri, Oct 23
Overcast
High 71°F / Low 46°F
Chance 0%
Precip 0.00 in
Max gust 10 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
Smallmouth bass are in the mixed, regulated-flow fishery on the Great Miami River at Hamilton, along with channel catfish and largemouth bass.
Fishery Profile
Documented species you may encounter at Great Miami 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
Smallmouth Bass
Micropterus dolomieu
- Expectation
- Primary
- Population
- Established
- Native status
- native
- Confidence
- High confidence
Source: Ohio Department of Natural Resources Division of Wildlife
Channel Catfish
Ictalurus punctatus
- Expectation
- Common
- Population
- Established
- Native status
- native
- Confidence
- High confidence
Source: Ohio Department of Natural Resources Division of Wildlife
Largemouth Bass
Micropterus nigricans
- Expectation
- Common
- Population
- Established
- Native status
- native
- Confidence
- High confidence
Source: Ohio Department of Natural Resources Division of Wildlife
White Bass
Morone chrysops
- Expectation
- Present
- Population
- Established
- Native status
- native
- Confidence
- High confidence
Source: Ohio Department of Natural Resources Division of Wildlife
Fishery characteristics
- Composition
- Mixed wild and stocked
- Great Lakes tributary
- No
- Flow regime
- Regulated flow
Best seasons
- Spring
- Summer
- Fall
Common techniques
- Boat fishing
- Fly fishing
- Shore fishing
- Spinning
Official sources
Hatch Match
General fly suggestions
- Popper-style surface flyGeneral warmwater surface family. Not an insect Hatch event.
- Woolly-bugger-style streamerGeneral warmwater streamer family. Not a baitfish Hatch event.
- Crayfish-style flyGeneral subsurface family. Crayfish forage is not a Hatch insect.
These are general fishing suggestions, not a report of insects currently hatching at this destination.
Location and Access
USGS monitoring location
Butler, Ohio
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
Butler
Management Category
Inland warmwater river
Regulation Scope
Great Miami River at Hamilton.
Regulation Summary
Great Miami River at Hamilton: Ohio inland fishing regulations. Confirm current official regulations.
Target Species
Smallmouth Bass, Largemouth Bass, Channel Catfish, White Bass
Access, Parking, and Regulations
Loading access and regulations…