Big Timber / Absaroka
Boulder River
Live Conditions
Boulder River — Near Big Timber
7-Day Flow
→ Stable
24-Hr Pressure
24.01 inHg · → High/stable
Local Weather
Tough conditions — fish deep
Today
☁️Overcast
67° / 43°
Tomorrow
☁️Overcast
61° / 41°
Sat
🌦️Drizzle
71° / 47°
0.06"
Sun
🌧️Rain showers
69° / 48°
0.23"
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 Boulder River.
2
Time of Day
What should I pack?
Rod, flies, tippet, and safety gear specific to today's Boulder River conditions.
🪰 Hatch Calendar
Boulder River · June · Early Summer
🟢 Active now at 64°F water
Select month
⚠ Runoff season — check live gauge before driving
Peak runoff continuing early month. SALMONFLIES (size 4-6) starting late month when flows allow — high-elevation timing puts the Boulder Salmonfly hatch in June. Golden Stones (size 6-8). Caddis (size 14-16).
🟢 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.
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.