What flies are hatching on the Androscoggin River right now?

Current and seasonal hatches on the Androscoggin River include Alder Fly, Caddis, Green Drake. Use the AI Hatch Advisor on this page for a live, temperature-aware recommendation.

What's the current flow on the Androscoggin River?

The Androscoggin River is running at 1,000 CFS at the At Errol gauge. Readings update every 15 minutes from the USGS Water Services API.

Is the Androscoggin River fishable today?

Yes — Androscoggin River is rated fishable right now. Current flow is 1,000 CFS at the At Errol gauge.

Androscoggin River Fly Fishing Conditions

Live Conditions

Androscoggin River — At Errol

Fishable

1,000CFS

Discharge

1.73ft

Gauge Height

—

Water Temp

Updated 15 min agoView on USGS ↗

7-Day Flow

→ Stable

RisingFallingStable

24-Hr Pressure

28.82 inHg · → High/stable

Falling (good)RisingHigh/stable

Local Weather

49°FOvercast

Wind 9 mph28.82 inHg Low & stable

Tough conditions — fish deep

Today

🌦️

Drizzle

70° / 56°

0.01"

Tomorrow

🌫️

Foggy

65° / 46°

Sat

☁️

Overcast

60° / 41°

Sun

🌧️

Rain

58° / 43°

0.25"

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?

⚡ AI

AI-powered recommendation using today's live flow, temperature, and hatch data.

9

Time of Day

Using: 1,000 CFS · BWOs

What should I pack?

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

🪰 Hatch Calendar

Androscoggin River · September · Early Fall

Full calendar →

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

Select month

JanDec

BWOs (size 18-20) returning. Cool water reactivates trophy browns and rainbows.

Blue-Winged Olive

River Map

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

About Androscoggin River

One of New England's great environmental recovery stories — from polluted mill river to legitimate trophy fishery. Wild browns and rainbows dominate the Errol reach; a C&R section runs below Berlin. Big water — wading is extremely limited above 1,500 CFS and borderline at 1,000. The mid-June Alder fly hatch is a regional spectacle. Cold water from Lake Umbagog and the Dead Cambridge keeps temps fishable through July.

Alder FlyCaddisGreen DrakeMarch BrownStoneflyBlue-Winged Olive

Regulations

NH fishing license required (Maine license for the Maine reach). C&R section below Berlin. Verify current season and reach-specific rules with NH F&G. Flows regulated by upstream dams (Lake Umbagog).

Learn More

Guides to help you fish Androscoggin River with more confidence.