What flies are hatching on the Williams River right now?

Current and seasonal hatches on the Williams River include Caddis, Sulphur, Blue-Winged Olive. Use the AI Hatch Advisor on this page for a live, temperature-aware recommendation.

What's the current flow on the Williams River?

The Williams River is running at 46.7 CFS at the Near Rockingham gauge. Readings update every 15 minutes from the USGS Water Services API.

Is the Williams River fishable today?

Williams River is rated marginal right now. Flow is 46.7 CFS at the Near Rockingham gauge. Go in prepared — heavier tippet, cautious wading, or target edges and seams.

Williams River Fly Fishing Conditions

Live Conditions

Williams River — Near Rockingham

Marginal

46.7CFS

Discharge

2.35ft

Gauge Height

—

Water Temp

Updated 30 min agoView on USGS ↗

7-Day Flow

↓ Falling

RisingFallingStable

24-Hr Pressure

29.62 inHg · → High/stable

Falling (good)RisingHigh/stable

Local Weather

53°FOvercast

Wind 4 mph29.62 inHg Stable

Normal conditions

Today

🌧️

Rain

76° / 61°

0.22"

Tomorrow

🌫️

Foggy

75° / 53°

Sat

☁️

Overcast

66° / 47°

Sun

🌧️

Rain

57° / 47°

0.43"

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: 46.7 CFS · BWOs

What should I pack?

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

🪰 Hatch Calendar

Williams 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 when fall rain restores flows. Brookie pre-spawn — RESPECT REDDS.

Blue-Winged Olive

River Map

Loading map…

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

About Williams River

A small Connecticut River tributary entering near Bellows Falls. Freestone character with a mix of stocked and wild browns and brookies. Good early-season option in southern Vermont when larger rivers are still too high. Roadside access along Route 103 makes it approachable for beginners — doesn't get the name recognition of the Battenkill or West River, so pressure stays light.

CaddisSulphurBlue-Winged OliveMidge

Regulations

Mix of stocked and wild trout sections. Standard Vermont F&W regulations. Requires Vermont fishing license.

Learn More

Guides to help you fish Williams River with more confidence.