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St. Marys River at Sault Ste. Marie, Ontario water level

River gauge, St. Marys River, Michigan, United States

Directions

Right now

Normal for mid-October

Water level

579.14ft

Flow
81,400 cfs
500 600

History

Not enough readings for a chart yet. History builds up with every update.

What this means

Water levels are unremarkable at St. Marys River at Sault Ste. Marie, Ontario, where the gauge shows 579.14 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

Paddling and fishing conditions

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

Weather at the gauge

No rain in the last 3 days.

20 Tue 60° 33° – Wind 9 mph
21 Wed 63° 40° – Wind 6 mph
22 Thu 58° 41° – Wind 6 mph
23 Fri 61° 43° – Wind 10 mph
24 Sat 66° 46° – Wind 10 mph
25 Sun 58° 44° 0.04 in, 26% Wind 15 mph
26 Mon 45° 40° 0.01 in Wind 9 mph

Forecast: Open-Meteo

Sunrise 08:04 AM Sunset 06:42 PM Daylight 10 hr, 38 min Waxing gibbous 74%

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Root River at Sault Ste. MarieRiver gauge, Root River 13.00 m Very high −0.03 m 7.6 km
Big Carp River near Sault Ste. MarieRiver gauge, Big Carp River 2.42 m Low −0.02 m 12 km
St. Marys River near Garden RiverRiver gauge, St. Marys River 24.01 m Normal −0.04 m 15 km
Goulais River near Kirby'S CornerRiver gauge, Goulais River 2.97 m Low −0.01 m 24 km
Pine River near RudyardRiver gauge, Pine River 1.06 ft Below flood stage −0.04 ft 26 mi
Thessalon River near Poplar DaleRiver gauge, Thessalon River 1.88 m Very low −0.01 m 46 km
Goulais River near SearchmontRiver gauge, Goulais River 7.33 m Very low −0.02 m 48 km
Batchawana River near BatchawanaRiver gauge, Batchawana River 2.16 m Very low −0.01 m 58 km

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 St. Marys River at Sault Ste. Marie, Ontario today?

On Oct 16, 2026, 11:24 AM EDT, the water level was 579.14 ft.

Is the level of St. Marys River at Sault Ste. Marie, Ontario 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:04127885 (Agency page)
Coordinates
46.49833, -84.31528 (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 579.14 ft 2026-10-16 15:24 Provisional
Flow 81,400 cfs 2026-10-21 03:12 Provisional

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Embed this gauge

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How to cite

U.S. Geological Survey: St. Marys River at Sault Ste. Marie, Ontario (usgs:04127885). Accessed October 21, 2026 via Nivelmap, https://nivelmap.com/en/united-states/michigan/st-marys-river-at-sault-ste-marie-ontario

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.