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Mississippi River below Marble Lake water level

River gauge, Mississippi River, Ontario, Canada

Directions

Right now

Very high for mid-October

Water level

8.65m Steady over the last 24 hours

Flow
4.81 m³/s
8.3 8.5

History

History
8.28.48.6mOct 12Oct 14Oct 16Oct 18Oct 198.28.48.6mOct 12Oct 16Oct 19
8.28.48.6mSep 19Sep 27Oct 4Oct 12Oct 198.28.48.6mSep 19Oct 4Oct 19
8.59.09.5mOct 2025Jan 2026Apr 2026Jul 2026Oct 20268.59.09.5mOct 2025Apr 2026Oct 2026
8.59.09.5mJanMarMayJulSepNov20268.59.09.5mJanAprJulOct2026

20252026

Water level Normal range (10–90 %)

What this means

High water at Mississippi River below Marble Lake: the latest reading is 8.65 m, well above normal for mid-October.

That puts it 0.14 m above the median of 8.51 m for mid-October, based on 21 years of readings.

The level has held steady over the past 24 hours. The 30-day range is 8.42 m – 8.67 m.

That stands out in fall, when many rivers are usually near their lowest.

Compared with 21 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date
8.51 m0.14 m above the median for this date
Normal for this date
8.20 m – 8.59 m8 years in 10 fall in this range (21 years of records)
Lowest and highest in 30 days
8.42 m – 8.67 m
Lowest and highest in 12 months
8.17 m – 8.74 m

High water: what to watch for

Fast water is stronger than it looks. Even shallow water across a road can move a car, and riverbanks can be undercut and give way without warning.

Upstream gauges on the same river usually show a rise first, which is a useful early warning.

About the Mississippi River

Mississippi River (Ontario)

The Mississippi River is a tributary of the Ottawa River in Eastern Ontario, Canada, which has no geographic relation with the Mississippi River in the United States. It is 200 kilometres (120 mi) in length from its source at Mackavoy Lake, has a drainage area of 4,450 square kilometres (1,720 sq mi), and has a mean discharge of 40 cubic metres per second (1,400 cu ft/s). There are more than 250 lakes in the watershed.

Read more on Wikipedia

Text and image from Wikipedia and Wikimedia Commons, licensed under CC BY-SA.

Weather at the gauge

Rain in the last 3 days: 14 mm. Rain that falls upstream can take hours or days to show up at a river gauge.

19 Mon 16° 2° – Wind 12 km/h
20 Tue 12° 3° – Wind 14 km/h
21 Wed 14° 1° – Wind 8 km/h
22 Thu 17° 5° – Wind 12 km/h
23 Fri 11° 2° – Wind 12 km/h
24 Sat 14° 0° – Wind 7 km/h
25 Sun 16° 4° – Wind 18 km/h

Forecast: Open-Meteo

Sunrise 07:30 AM Sunset 06:19 PM Daylight 10 hr, 49 min First quarter 62%

Map

Other gauges on the Mississippi River

Gauge Level Compared with normal 24 hours Distance
Mississippi River at Outlet of Dalhousie LakeRiver gauge, Mississippi River 6.27 m Normal ±0 48 km
Mississippi River at Fergusons FallsRiver gauge, Mississippi River 3.09 m High ±0 70 km
Mississippi River at AppletonRiver gauge, Mississippi River 1.73 m Normal ±0 87 km

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Buckshot Creek near PlevnaRiver gauge, Buckshot Creek 1.45 m Low −0.04 m 18 km
Skootamatta River near ActinoliteRiver gauge, Skootamatta River 3.12 m High −0.01 m 37 km
Sharbot Lake at Outlet of Sharbot LakeLake, Sharbot Lake 1.09 m High ±0 39 km
Black River near ActinoliteRiver gauge, Black River 12.13 m High −0.01 m 39 km
Clare River near BogartRiver gauge, Clare River 1.70 m Normal −0.01 m 39 km
Salmon River at TamworthRiver gauge, Salmon River 4.60 m Normal −0.01 m 41 km
Moira River near TweedRiver gauge, Moira River 4.38 m High −0.01 m 42 km
Tay River near BolingbrokeRiver gauge, Tay River 8.26 m Very high +0.02 m 49 km

Questions and answers

What is a normal level for the Mississippi River below Marble Lake in mid-October?

The median for mid-October is 8.51 m. In 8 years out of 10 the reading falls between 8.20 m and 8.59 m, based on 21 years of records.

Is the river level the same as the depth of the water?

No. The reading is measured from a fixed zero mark at the gauge, so 8.65 m on the gauge does not mean the water is that deep.

What is the water level of Mississippi River below Marble Lake today?

On Oct 19, 2026, 02:35 PM EDT, the water level was 8.65 m. Steady over the last 24 hours.

Is Mississippi River below Marble Lake rising or falling?

Steady over the last 24 hours. Up 0.22 m over the last 7 days.

Is the level of Mississippi River below Marble Lake normal?

Very high for mid-October. Compared with 21 years of daily readings for this time of year.

How often is this data updated?

Environment and Climate Change Canada – Water Survey of Canada publishes a new reading every hour. This page refreshes within minutes of each update.

Where does this data come from?

The values come directly from Environment and Climate Change Canada – Water Survey of Canada, the official operator of this gauge, and are published under the Open Government Licence – Canada. We do not estimate or model live values.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
Environment and Climate Change Canada – Water Survey of Canada
Station code
eccc:02KF016 (Agency page)
Coordinates
44.84317, -77.12006 (WGS84)
Vertical datum
station datum (assumed datum)
Update interval
every hour
Licence
Open Government Licence – Canada. Contains information licensed under the Open Government Licence – Canada

Published series

ParameterLast valueTime (UTC)Quality
Water level 8.65 m 2026-10-19 18:35 Provisional
Flow 4.81 m³/s 2026-10-19 18:35 Provisional

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How to cite

Environment and Climate Change Canada – Water Survey of Canada: Mississippi River below Marble Lake (eccc:02KF016). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/canada/ontario/mississippi-river-below-marble-lake

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.