Charles River, New Charles River Dam at Boston water level

Name: Charles River, New Charles River Dam at Boston water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

Tidal gauge, Charles River, New Charles River Dam, Massachusetts, United States

Directions

Normal for late October

Water level

107.56ft Steady over the last 24 hours

Measured Oct 21, 2026, 02:24 AM EDT (13 min ago)

History

7 days 30 days 1 year Years compared

20252026

Water level Normal range (10–90 %)

What this means

Water levels are unremarkable at Charles River, New Charles River Dam at Boston, where the gauge shows 107.56 ft.

The median for late October is 107.79 ft, based on 17 years of readings, so the water level is 0.23 ft below typical. On the same day last year the reading was 107.20 ft, a difference of +0.36 ft.

It has barely moved over the past 24 hours. The 30-day range is 106.72 ft – 108.27 ft.

Compared with 17 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date: 107.79 ft0.23 ft below the median for this date
Normal for this date: 107.22 ft – 107.94 ft8 years in 10 fall in this range (17 years of records)
Same day last year: 107.20 ft+0.36 ft
Lowest and highest in 30 days: 106.72 ft – 108.27 ft
Lowest and highest in 12 months: 106.71 ft – 107.95 ft

Weather at the gauge

No rain in the last 3 days.

20 Tue 64° 38° – Wind 14 mph

21 Wed 55° 46° – Wind 13 mph

22 Thu 63° 42° – Wind 17 mph

23 Fri 55° 44° – Wind 16 mph

24 Sat 60° 43° – Wind 7 mph

25 Sun 63° 46° – Wind 9 mph

26 Mon 67° 49° – Wind 10 mph

Forecast: Open-Meteo

Sunrise 07:05 AM Sunset 05:54 PM Daylight 10 hr, 50 min Waxing gibbous 75%

Map

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Charles River at First St at CambridgeTidal gauge, Charles River	107.61 ft	Normal	+0.02 ft	1.0 mi
Mystic River at Amelia Earhart Dam near SomervilleTidal gauge, Mystic River	105.33 ft	Low	−0.21 ft	2.0 mi
Muddy River at BrooklineTidal gauge, Muddy River	7.66 ft	Low	+0.13 ft	3.3 mi
Alewife Brook near ArlingtonTidal gauge, Alewife Brook	8.0 cfs	Normal	−0.5 cfs	4.5 mi
Aberjona River at WinchesterRiver gauge, Aberjona River	14.3 cfs	Normal	−1.1 cfs	7 mi
Neponset River at Milton VillageEstuary gauge, Neponset River	143 cfs	Normal	+2.0 cfs	7 mi
Saugus River at Saugus Ironworks at SaugusTidal gauge, Saugus River	5.4 cfs	Low	−0.3 cfs	7 mi
Charles River at WalthamRiver gauge, Charles River	1.44 ft	Below flood stage	−0.06 ft	9 mi

Questions and answers

Is the Charles River, New Charles River Dam at Boston higher than last year?

Yes, it is 0.36 ft higher than on the same day last year, when the reading was 107.20 ft.

What is a normal level for the Charles River, New Charles River Dam at Boston in late October?

The median for late October is 107.79 ft. In 8 years out of 10 the reading falls between 107.22 ft and 107.94 ft, based on 17 years of records.

What is the water level of Charles River, New Charles River Dam at Boston today?

On Oct 21, 2026, 02:24 AM EDT, the water level was 107.56 ft. Steady over the last 24 hours.

Is Charles River, New Charles River Dam at Boston rising or falling?

Steady over the last 24 hours. Up 0.18 ft over the last 7 days.

Is the level of Charles River, New Charles River Dam at Boston normal?

Normal for late October. Compared with 17 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:01104715 (Agency page)
Coordinates: 42.36889, -71.06167 (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

Parameter	Last value	Time (UTC)	Quality
Water level	107.56 ft	2026-10-21 06:24	Provisional

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How to cite

U.S. Geological Survey: Charles River, New Charles River Dam at Boston (usgs:01104715). Accessed October 21, 2026 via Nivelmap, https://nivelmap.com/en/united-states/massachusetts/charles-river-new-charles-river-dam-at-boston

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.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer