What flies are hatching on the Pemigewasset River right now?

Current and seasonal hatches on the Pemigewasset River include Hendrickson, Sulphur, March Brown. Use the AI Hatch Advisor on this page for a live, temperature-aware recommendation.

What's the current flow on the Pemigewasset River?

The Pemigewasset River is running at 512 CFS at the At Plymouth gauge. Readings update every 15 minutes from the USGS Water Services API.

Is the Pemigewasset River fishable today?

Yes — Pemigewasset River is rated fishable right now. Current flow is 512 CFS at the At Plymouth gauge.

Pemigewasset River Fly Fishing Conditions

Live Conditions

Pemigewasset River — At Plymouth

Fishable

512CFS

Discharge

1.17ft

Gauge Height

—

Water Temp

Updated 43 min agoView on USGS ↗

7-Day Flow

↓ Falling

RisingFallingStable

24-Hr Pressure

29.52 inHg · → High/stable

Falling (good)RisingHigh/stable

Local Weather

74°FClear sky

Wind 1 mph29.52 inHg Low & stable

Tough conditions — fish deep

Today

🌧️

Rain

81° / 62°

1.02"

Tomorrow

🌤️

Mainly clear

84° / 60°

Wed

☁️

Overcast

85° / 65°

Thu

⛈️

Thunderstorm

92° / 68°

0.07"

Rain in forecast — expect rising, off-color water in 12–24 hrs.

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: 512 CFS · Trico continues. Terrestrials peak. Caddis. Upper river around Woodstock/Thornton sees less pressure.

What should I pack?

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

🪰 Hatch Calendar

Pemigewasset River · August · Late Summer

Full calendar →

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

Select month

JanDec

Trico continues. Terrestrials peak. Caddis. Upper river around Woodstock/Thornton sees less pressure.

TricoCaddisTerrestrials

River Map

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

About Pemigewasset River

A major river draining the Franconia Notch and Woodstock area. Heavily stocked with browns and rainbows; some wild fish survive in tributaries and lower-pressure reaches. Classic mid-size New England freestone — best wading in the 200–600 CFS range. The upper river around Woodstock/Thornton sees less pressure than Plymouth.

HendricksonSulphurMarch BrownGreen DrakeCaddisLight CahillTricoBlue-Winged Olive

Regulations

NH fishing license required. Stocked sections under standard NH F&G regulations.

Learn More

Guides to help you fish Pemigewasset River with more confidence.