Big Timber / Absaroka
Boulder River
Live Conditions
Boulder River — Near Big Timber
7-Day Flow
↓ Falling
24-Hr Pressure
24.05 inHg · → High/stable
Local Weather
Tough conditions — fish deep
Today
☁️Overcast
50° / 37°
Tomorrow
❄️Snow
38° / 26°
0.17"
Wed
☁️Overcast
54° / 25°
Thu
🌧️Rain
55° / 43°
0.19"
Snow in forecast — check road conditions before heading out.
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 Boulder River.
2
What should I pack?
Rod, flies, tippet, and safety gear specific to today's Boulder River conditions.
🪰 Hatch Calendar
Boulder River · May · Late Spring
🟢 Active now at 54°F water
🟡 Approaching — within 5°F of trigger range
Select month
⚠ Runoff season — check live gauge before driving
RUNOFF SEASON — Absaroka-Beartooth snowmelt pushes flows hard. Caddis (size 14-16) when flows allow late month. Small-drainage runoff is brief.
🟢 Active · 🟡 Approaching · ⚪ Seasonal only
River Map
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 — a low-pressure alternative to the nearby Yellowstone and Stillwater.