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Big Timber / Absaroka

Boulder River

Unfishable13,600 CFSIntermediate

Live Conditions

Boulder River β€” Near Big Timber

Unfishable
13,600CFS
Discharge
6.01ft
Gauge Height
64.0Β°F
Water Temp
Updated 27 min agoView on USGS β†—

7-Day Flow

β†’ Stable

RisingFallingStable

24-Hr Pressure

24.01 inHg Β· β†’ High/stable

Falling (good)RisingHigh/stable

Local Weather

57Β°FClear sky
Wind 10 mph24.01 inHg  Low & stable

Tough conditions β€” fish deep

Today

☁️

Overcast

67° / 43Β°

Tomorrow

☁️

Overcast

61° / 41Β°

Sat

🌦️

Drizzle

71° / 47Β°

0.06"

Sun

🌧️

Rain showers

69° / 48Β°

0.23"

Cold front incoming β€” go deep with nymphs, surface activity likely slow.

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

What should I fish today?

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

2

Time of Day

What should I pack?

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

πŸͺ° Hatch Calendar

Boulder River Β· June Β· Early Summer

Full calendar β†’

🟒 Active now at 64°F water

CaddisPale Morning Dun

Select month

JanDec

⚠ Runoff season β€” check live gauge before driving

Peak runoff continuing early month. SALMONFLIES (size 4-6) starting late month when flows allow β€” high-elevation timing puts the Boulder Salmonfly hatch in June. Golden Stones (size 6-8). Caddis (size 14-16).

Caddis

🟒 Active Β· 🟑 Approaching Β· βšͺ Seasonal only

River Map

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

About Boulder River

Small classic Montana freestone draining the Absaroka-Beartooth Wilderness south of Big Timber. Pocket water and meadow runs full of wild trout β€” a low-pressure alternative to the nearby Yellowstone and Stillwater.

SalmonflyGolden StoneCaddisPale Morning DunHopperBlue-Winged Olive

Regulations

Standard Montana trout regulations apply on the Boulder; cutthroat and brown trout are present in the upper reaches. Montana fishing license required. Verify current regs at fwp.mt.gov before fishing.