Northeast
West Branch Penobscot
Live Conditions
West Branch Penobscot — East Branch Penobscot (proxy)
7-Day Flow
→ Stable
24-Hr Pressure
29.21 inHg · → High/stable
Local Weather
Tough conditions — fish deep
Today
🌦️Drizzle
67° / 53°
0.02"
Tomorrow
🌫️Foggy
67° / 47°
Sat
☁️Overcast
57° / 41°
Sun
🌦️Drizzle
57° / 40°
0.18"
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?
⚡ AIAI-powered recommendation using today's live flow, temperature, and hatch data.
2
Time of Day
Using: 385 CFS · BWOs
What should I pack?
Rod, flies, tippet, and safety gear specific to today's West Branch Penobscot conditions.
🪰 Hatch Calendar
West Branch Penobscot · September · Early Fall
Showing typical dates — water temperature data unavailable for live hatch predictions.
Select month
BWOs (size 18-20) returning. Salmon pre-spawn — fall salmon fishing is the second marquee window. Brookies aggressive.
River Map
About West Branch Penobscot
Below Ripogenus Dam — arguably the best landlocked salmon river in the eastern United States. Cold tailwater fed by Brookfield Renewable releases produces large wild salmon and brook trout in dramatic gorge water. The smelt run in May and the fall salmon push are the marquee windows. Remote, scenic, and unforgiving — the standard against which other Maine salmon water gets measured.
Regulations
Maine fishing license + separate Inland Salmon license required. Heritage Brook Trout watershed; slot limits apply on sections — check Maine DIFW for current regs. CAUTION: Gauge 01027500 at Millinocket reads ~15 miles downstream of the prime gorge water and integrates flows after the Debsconeag lakes — use it for trend, not precise gorge conditions. For actual release info, consult the Brookfield Energy / Great Lakes Hydro release schedule for Ripogenus Dam.
Learn More
Guides to help you fish West Branch Penobscot with more confidence.
Maine Fishing Regulations for Fly Anglers
Maine fishing license, the separate Inland Salmon endorsement for landlocked salmon waters, the Heritage Brook Trout designation, water-by-water…
Trout Species of Maine
Maine's signature wild brook trout fishery (the Rapid, the Kennebago, the Heritage waters), wild landlocked Atlantic salmon (true Salmo salar — the…
How Barometric Pressure Affects Fishing (And How to Use It)
That gorgeous bluebird day after a cold front? Worst fishing of the year. Here's the data behind why pressure changes matter more than the weather…