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Alewife Brook near Arlington water level

Tidal gauge, Alewife Brook, Massachusetts, United States

Directions

Right now

Normal for mid-October

Water level

1.81ft Steady over the last 24 hours

Flow
8.5 cfs
0 1 3 4

History

History
1.801.851.90ftOct 16Oct 16Oct 17Oct 18Oct 191.801.851.90ftOct 16Oct 17Oct 19
Water level

What this means

Alewife Brook near Arlington is at 1.81 ft, in the normal range for mid-October.

It has barely moved over the past 24 hours. In the last month it has stayed between 1.78 ft and 2.03 ft.

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

Weather at the gauge

Rain in the last 3 days: 0.23 in. Rain that falls upstream can take hours or days to show up at a river gauge.

19 Mon 56° 34° – Wind 8 mph
20 Tue 60° 42° – Wind 15 mph
21 Wed 52° 44° – Wind 12 mph
22 Thu 61° 42° – Wind 8 mph
23 Fri 55° 44° – Wind 11 mph
24 Sat 55° 38° – Wind 7 mph
25 Sun 62° 38° – Wind 9 mph

Forecast: Open-Meteo

Sunrise 07:03 AM Sunset 05:58 PM Daylight 10 hr, 55 min First quarter 59%

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Aberjona River at WinchesterRiver gauge, Aberjona River 16.2 cfs Normal −1.6 cfs 2.8 mi
Mystic River at Amelia Earhart Dam near SomervilleTidal gauge, Mystic River 105.43 ft Normal +0.28 ft 3.1 mi
Charles River at First St at CambridgeTidal gauge, Charles River 107.67 ft Normal −0.28 ft 4.2 mi
Charles River, New Charles River Dam at BostonTidal gauge, Charles River, New Charles River Dam 107.63 ft Normal −0.34 ft 4.5 mi
Muddy River at BrooklineTidal gauge, Muddy River 7.59 ft Very low −0.28 ft 5.0 mi
Charles River at WalthamRiver gauge, Charles River 1.53 ft Below flood stage −0.04 ft 5.6 mi
Cambridge Reservoir, Unnamed Tributary 3, near LexingtonRiver gauge, Cambridge Reservoir, Unnamed Tributary 3 0.2 cfs Low +0.1 cfs 6 mi
Cambridge Reservoir, Unnamed Tributary 2, near LexingtonRiver gauge, Cambridge Reservoir, Unnamed Tributary 2 0.1 cfs Low ±0 7 mi

Questions and answers

What is the water level of Alewife Brook near Arlington today?

On Oct 19, 2026, 08:45 AM EDT, the water level was 1.81 ft. Steady over the last 24 hours.

Is Alewife Brook near Arlington rising or falling?

Steady over the last 24 hours.

Is the level of Alewife Brook near Arlington 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:01103025 (Agency page)
Coordinates
42.40692, -71.13391 (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 1.81 ft 2026-10-19 12:45 Provisional
Flow 8.5 cfs 2026-10-19 12:45 Provisional

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How to cite

U.S. Geological Survey: Alewife Brook near Arlington (usgs:01103025). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/united-states/massachusetts/alewife-brook-near-arlington

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.