What flies are hatching on the Sandy River right now?

Current and seasonal hatches on the Sandy River include Hendrickson, Caddis, Pale Morning Dun. Use the AI Hatch Advisor on this page for a live, temperature-aware recommendation.

What's the current flow on the Sandy River?

The Sandy River is running at 592 CFS at the Near Mercer gauge. Readings update every 15 minutes from the USGS Water Services API.

Is the Sandy River fishable today?

Yes — Sandy River is rated fishable right now. Current flow is 592 CFS at the Near Mercer gauge.

Sandy River Fly Fishing Conditions

Live Conditions

Sandy River — Near Mercer

Fishable

592CFS

Discharge

3.89ft

Gauge Height

—

Water Temp

Updated 1 hr agoView on USGS ↗

7-Day Flow

↓ Falling

RisingFallingStable

24-Hr Pressure

29.57 inHg · → High/stable

Falling (good)RisingHigh/stable

Local Weather

74°FClear sky

Wind 3 mph29.57 inHg Low & stable

Tough conditions — fish deep

Today

🌧️

Rain

80° / 63°

0.45"

Tomorrow

🌤️

Mainly clear

85° / 60°

Wed

☁️

Overcast

88° / 66°

Thu

☁️

Overcast

91° / 68°

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: 592 CFS · Trico peak. Terrestrials. PMDs tapering. Fish dawn and dusk in summer heat.

What should I pack?

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

🪰 Hatch Calendar

Sandy River · August · Late Summer

Full calendar →

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

Select month

JanDec

Trico peak. Terrestrials. PMDs tapering. Fish dawn and dusk in summer heat.

PMDTricoTerrestrials

River Map

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

About Sandy River

A classic freestone in the Farmington area with wild brook trout in the upper reaches and tributaries, and stocked browns in the lower river. Accessible, fishable, and a solid intro to Maine fly fishing. Tributary to the Kennebec — gauge at Farmington covers the productive mid-river section well.

HendricksonCaddisPale Morning DunTricoBlue-Winged Olive

Regulations

Maine fishing license required. Standard trout regs; check Maine DIFW for Heritage Brook Trout designations in upper tributaries.

Learn More

Guides to help you fish Sandy River with more confidence.