Nivelmap
EN

Norwalk River at South Wilton water level

River gauge, Norwalk River, Connecticut, United States

Directions

Right now

Normal for mid-October

Water level

1.36ft Steady over the last 24 hours

Flow
27.3 cfs
0 1 3 4

History

History
1.351.401.451.50ftOct 16Oct 17Oct 18Oct 19Oct 201.351.401.451.50ftOct 16Oct 18Oct 20
Water level

What this means

The Norwalk River at South Wilton is at 1.36 ft, in the normal range for mid-October.

The level has held steady over the past 24 hours. In the last month it has stayed between 1.36 ft and 1.50 ft.

Fall is often low-water season on rivers, until steadier rain returns.

Compared with 5 years of daily readings for this time of year. How to read levels

Floating and fishing near Norwalk River at South Wilton

Normal flows mean predictable rapids and good access at most put-ins.

Weather at the gauge

The forecast is not available right now.

Sunrise 07:11 AM Sunset 06:07 PM Daylight 10 hr, 56 min First quarter 68%

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Saugatuck River near WestportRiver gauge, Saugatuck River 93.7 cfs High −1.6 cfs 2.9 mi
Fivemile River near New CanaanRiver gauge, Fivemile River 1.86 ft Normal ±0 4.8 mi
Sasco Brook near SouthportRiver gauge, Sasco Brook 1.42 ft High −0.01 ft 6.0 mi
Aspetuck River at AspetuckRiver gauge, Aspetuck River 41.7 cfs Very high −2.7 cfs 7 mi
Saugatuck River below Saugatuck Reservoir near Lyons PlainRiver gauge, Saugatuck River 11.4 cfs Normal ±0 7 mi
Mill River near FairfieldRiver gauge, Mill River 9.9 cfs Normal −1.2 cfs 8 mi
Saugatuck River near ReddingRiver gauge, Saugatuck River 21.4 cfs Normal −2.9 cfs 9 mi
Rippowam River at StamfordRiver gauge, Rippowam River 17.3 cfs Normal ±0 10 mi

Questions and answers

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of Norwalk River at South Wilton today?

On Oct 20, 2026, 07:30 AM EDT, the water level was 1.36 ft. Steady over the last 24 hours.

Is Norwalk River at South Wilton rising or falling?

Steady over the last 24 hours.

Is the level of Norwalk River at South Wilton normal?

Normal for mid-October. Compared with 5 years of daily readings for this time of year.

How often is this data updated?

The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

Where does this data come from?

The values come directly from the U.S. Geological Survey, the official operator of this gauge, and are in the public domain. We do not estimate or model live values.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
U.S. Geological Survey
Station code
usgs:01209700 (Agency page)
Coordinates
41.16377, -73.41954 (WGS84)
Vertical datum
NAVD88
Update interval
every 15 minutes
Licence
Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

ParameterLast valueTime (UTC)Quality
Water level 1.36 ft 2026-10-20 11:30 Provisional
Flow 27.3 cfs 2026-10-20 11:30 Provisional

Download

Embed this gauge

Add a live card for this gauge to your website. It updates on its own and links back here.

How to cite

U.S. Geological Survey: Norwalk River at South Wilton (usgs:01209700). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/connecticut/norwalk-river-at-south-wilton

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.