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Twin Bridges / Alder

Ruby River

Fishable585 CFSIntermediate

Live Conditions

Ruby RiverNear Twin Bridges

Fishable
585CFS
Discharge
1.86ft
Gauge Height
Water Temp
Updated 44 min agoView on USGS ↗

7-Day Flow

→ Stable

RisingFallingStable

24-Hr Pressure

23.53 inHg · → High/stable

Falling (good)RisingHigh/stable

Local Weather

61°FClear sky
Wind 7 mph23.53 inHg Low & stable

Tough conditions — fish deep

Today

☀️

Clear sky

69° / 41°

Tomorrow

☁️

Overcast

72° / 41°

Sat

🌦️

Drizzle

62° / 52°

0.06"

Sun

🌦️

Drizzle

69° / 44°

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

Time of Day

What should I pack?

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

🪰 Hatch Calendar

Ruby River · June · Early Summer

Full calendar →

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

Select month

JanDec

Caddis (size 14-16) heavy. PMDs (size 16-18) starting mid-morning. Yellow Sallies (size 14). Irrigation releases dominate flow patterns. Tricky technical brown trout fishing in low clear water.

PMDCaddis

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.