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 78.8 CFS at the Near Mercer gauge. Readings update every 15 minutes from the USGS Water Services API.

Is the Sandy River fishable today?

Sandy River is rated marginal right now. Flow is 78.8 CFS at the Near Mercer gauge. Go in prepared — heavier tippet, cautious wading, or target edges and seams.

Sandy River Fly Fishing Conditions

Live Conditions

Sandy River — Near Mercer

Marginal

78.8CFS

Discharge

2.68ft

Gauge Height

—

Water Temp

Updated 1 hr agoView on USGS ↗

7-Day Flow

↓ Falling

RisingFallingStable

24-Hr Pressure

29.71 inHg · → High/stable

Falling (good)RisingHigh/stable

Local Weather

53°FOvercast

Wind 3 mph29.71 inHg Stable

Normal conditions

Today

☁️

Overcast

66° / 38°

Tomorrow

☁️

Overcast

62° / 50°

Wed

☁️

Overcast

73° / 48°

Thu

🌦️

Drizzle

64° / 53°

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.

6

Time of Day

Using: 78.8 CFS · Midges and BWOs. Brown trout spawning — RESPECT REDDS. Cold water slowing.

What should I pack?

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

🪰 Hatch Calendar

Sandy River · November · Late Fall

Full calendar →

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

Select month

JanDec

Midges and BWOs. Brown trout spawning — RESPECT REDDS. Cold water slowing.

Blue-Winged OliveMidge

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.