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St. Clair River at Port Huron water level

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

Directions

Right now

Normal for mid-October

Water level

578.24ft Up 0.05 ft over the last 24 hours

Flow
198,000 cfs
576 578 579 580

History

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

What this means

Water levels are unremarkable at St. Clair River at Port Huron, where the gauge shows 578.24 ft.

The median for mid-October is 578.60 ft, based on 17 years of readings, so the river stage is 0.36 ft below typical.

It is on the way up, by 0.05 ft over the past 24 hours.

Fall is often low-water season on rivers, until steadier rain returns.

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

Key numbers

Median for this date
578.60 ft0.36 ft below the median for this date
Normal for this date
576.66 ft – 580.41 ft8 years in 10 fall in this range (17 years of records)

Paddling and fishing conditions

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

Weather at the gauge

The forecast is not available right now.

Sunrise 07:47 AM Sunset 06:44 PM Daylight 10 hr, 56 min First quarter 50%

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Perch Creek at SarniaRiver gauge, Perch Creek 2.50 m Low −0.21 m 8.6 km
Bear Creek below BrigdenRiver gauge, Bear Creek 3.93 m Normal +0.02 m 22 km
Black River near JeddoRiver gauge, Black River 3.03 ft Below flood stage −0.05 ft 15 mi
Mill Creek near AvocaRiver gauge, Mill Creek 0.84 ft Below flood stage −0.02 ft 16 mi
Bear Creek near PetroliaRiver gauge, Bear Creek 4.11 m Normal ±0 26 km
Black Creek near BradshawRiver gauge, Black Creek 6.39 m Normal +0.01 m 28 km
Belle River at MemphisRiver gauge, Belle River 16.8 cfs Normal +0.7 cfs 18 mi
East Branch Coon Creek at ArmadaRiver gauge, East Branch Coon Creek 0.6 cfs Normal ±0 25 mi

Questions and answers

What is a normal level for the St. Clair River at Port Huron in mid-October?

The median for mid-October is 578.60 ft. In 8 years out of 10 the reading falls between 576.66 ft and 580.41 ft, based on 17 years of records.

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. Clair River at Port Huron today?

On Oct 16, 2026, 11:00 AM EDT, the water level was 578.24 ft. Up 0.05 ft over the last 24 hours.

Is St. Clair River at Port Huron rising or falling?

Up 0.05 ft over the last 24 hours.

Is the level of St. Clair River at Port Huron normal?

Normal for mid-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:04159130 (Agency page)
Coordinates
42.98697, -82.42464 (WGS84)
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 578.24 ft 2026-10-16 15:00 Provisional
Flow 198,000 cfs 2026-10-18 13:00 Provisional

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How to cite

U.S. Geological Survey: St. Clair River at Port Huron (usgs:04159130). Accessed October 18, 2026 via Nivelmap, https://nivelmap.com/en/united-states/michigan/st-clair-river-at-port-huron

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.