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

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

Directions

Normal for mid-October

Water level

579.14ft

Flow
75,100 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

Rain in the last 3 days: 0.85 in. Rain that falls upstream can take hours or days to show up at a river gauge.

17 Sat 55° 30° – Wind 12 mph
18 Sun 58° 39° – Wind 15 mph
19 Mon 59° 40° – Wind 6 mph
20 Tue 58° 40° – Wind 10 mph
21 Wed 63° 41° – Wind 11 mph
22 Thu 64° 48° – Wind 6 mph
23 Fri 64° 45° – Wind 10 mph

Forecast: Open-Meteo

Sunrise 08:02 AM Sunset 06:43 PM Daylight 10 hr, 41 min Waxing gibbous 70%

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 2.44 m Normal −0.02 m 12 km
St. Marys River near Garden RiverRiver gauge, St. Marys River 24.02 m Normal −0.09 m 15 km
Goulais River near Kirby'S CornerRiver gauge, Goulais River 2.71 m Very low −0.01 m 24 km
Pine River near RudyardRiver gauge, Pine River 1.08 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 2.17 m Very low −0.02 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 75,100 cfs 2026-10-20 17:00 Provisional

Download

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 20, 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.

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