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Twin Bridges / Alder

Ruby River

Fishable331 CFSIntermediate

Live Conditions

Ruby RiverNear Twin Bridges

Fishable
331CFS
Discharge
1.37ft
Gauge Height
Water Temp
Updated 1 hr agoView on USGS ↗

7-Day Flow

↑ Rising

RisingFallingStable

24-Hr Pressure

23.6 inHg · → High/stable

Falling (good)RisingHigh/stable

Local Weather

29°FClear sky
Wind 5 mph23.6 inHg Low & stable

Tough conditions — fish deep

Today

☁️

Overcast

56° / 37°

Tomorrow

☁️

Overcast

47° / 24°

Wed

☁️

Overcast

57° / 22°

Thu

☁️

Overcast

60° / 40°

Cold front incoming — go deep with nymphs, surface activity likely slow.

Weather by Open-Meteo · No API key · Updated every 30 min

What should I fish today?

One call. Specific to today's exact conditions on the Ruby River.

9

What should I pack?

Rod, flies, tippet, and safety gear specific to today's Ruby River conditions.

🪰 Hatch Calendar

Ruby River · May · Late Spring

Full calendar →

Showing typical dates — water temperature data unavailable for live hatch predictions.

Select month

JanDec

BWOs continuing. Caddis (size 14-16) starting. Reservoir releases beginning to ramp up for irrigation — flows become unpredictable through summer. Watch the gauge.

Blue-Winged OliveCaddis

River Map

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USGS Gauge (click for site ID)Fishing Access / SectionScroll to zoom disabled — use map controls

About Ruby River

Small meadow tailwater below Ruby Reservoir flowing north to the Beaverhead at Twin Bridges. Technical brown trout fishing in low, clear water — public access has been a long-running issue, so know the bridge-access rules before you go.

CaddisPale Morning DunHopperBlue-Winged OliveTricoMidge

Regulations

Public access on the Ruby is contentious — Montana stream access law allows fishing below the high-water mark, but landowner conflicts at bridge crossings are ongoing. Use established FWP fishing access sites and stay below the high-water mark.