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Charles River at Wellesley water level

River gauge, Charles River, Massachusetts, United States

Directions

Right now

Normal for mid-October

Water level

3.33ft Steady over the last 24 hours

Flow
203 cfs
3 4 5 6 Highest onrecord 6.20 ft

History

History
3.333.343.343.34ftOct 16Oct 16Oct 17Oct 17Oct 183.333.343.343.34ftOct 16Oct 17Oct 18
Water level

What this means

Water levels are unremarkable at Charles River at Wellesley, where the gauge shows 3.33 ft.

The level has held steady over the past 24 hours. The 30-day range is 3.33 ft – 3.37 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

Key numbers

Highest on record
6.20 ftMarch 21, 1968

Paddling and fishing conditions

Most paddlers and anglers will find the river in good shape at this stage.

Highest crests on record

RankLevelDate
16.20 ftMarch 21, 1968
26.11 ftJanuary 28, 1979
36.09 ftFebruary 5, 1976
45.59 ftJune 10, 1982
55.53 ftJune 18, 1998
65.52 ftJanuary 1, 1993
75.41 ftMarch 26, 2001
85.16 ftOctober 21, 1996

Weather at the gauge

The forecast is not available right now.

Sunrise 07:02 AM Sunset 06:00 PM Daylight 10 hr, 58 min First quarter 46%

Map

Other gauges on the Charles River

Gauge Level Compared with normal 24 hours Distance
Charles River at MedwayRiver gauge, Charles River 1.22 ft Below flood stage −0.07 ft 15 mi
Charles River at DoverRiver gauge, Charles River 1.30 ft Below flood stage −0.07 ft 4.5 mi
Charles River at WalthamRiver gauge, Charles River 1.58 ft Below flood stage −0.07 ft 3.9 mi
Charles River at First St at CambridgeTidal gauge, Charles River 107.71 ft Normal −0.09 ft 8 mi

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Stony Brook Reservoir at Dam near WalthamReservoir, Stony Brook Reservoir 1.8 cfs Normal ±0 3.3 mi
Stony Brook Reservoir, Unnamed Tributary 1, near WestonRiver gauge, Stony Brook Reservoir, Unnamed Tributary 1, 0.5 cfs Normal −0.2 cfs 3.3 mi
Stony Brook at RT 20 at WalthamRiver gauge, Stony Brook 10.7 cfs Low −6.1 cfs 4.2 mi
Stony Brook, Unnamed Tributary 1, near WalthamRiver gauge, Stony Brook, Unnamed Tributary 1, 0.5 cfs Normal −0.4 cfs 4.4 mi
Mother Brook at DedhamRiver gauge, Mother Brook 108 cfs Very high −16.0 cfs 5.3 mi
Trout Brook at DoverRiver gauge, Trout Brook 2.2 cfs Normal −1.2 cfs 5.5 mi
Stony Brook at Viles Street, near WestonRiver gauge, Stony Brook 2.6 cfs Low −1.5 cfs 5.7 mi
Hobbs Brook below Cambridge Reservoir near Kendall GreenReservoir, Hobbs Brook 5.3 cfs Normal −1.8 cfs 6.1 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 Charles River at Wellesley today?

On Oct 18, 2026, 12:35 AM EDT, the water level was 3.33 ft. Steady over the last 24 hours.

Is Charles River at Wellesley rising or falling?

Steady over the last 24 hours.

Is the level of Charles River at Wellesley normal?

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

What is the highest water level ever recorded at Charles River at Wellesley?

The highest level on record is 6.20 ft on March 21, 1968.

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:01104200 (Agency page)
Coordinates
42.31649, -71.22783 (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 3.33 ft 2026-10-18 04:35 Provisional
Flow 203 cfs 2026-10-18 04:35 Provisional

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How to cite

U.S. Geological Survey: Charles River at Wellesley (usgs:01104200). Accessed October 18, 2026 via Nivelmap, https://nivelmap.com/en/united-states/massachusetts/charles-river-at-wellesley

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.