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Forest Lake at South River water level

Lake, Forest Lake, Ontario, Canada

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Right now

Very high for mid-October

Water level

9.06m Up 0.04 m over the last 24 hours

8.9 9.0

History

History
8.99.0mOct 11Oct 13Oct 15Oct 17Oct 188.99.0mOct 11Oct 15Oct 18
8.99.0mSep 18Sep 26Oct 3Oct 11Oct 188.99.0mSep 18Oct 3Oct 18
8.59.0mOct 2025Jan 2026Apr 2026Jul 2026Oct 20268.59.0mOct 2025Apr 2026Oct 2026
8.08.59.09.5mOct 2016Apr 2019Oct 2021Apr 2024Oct 20268.08.59.09.5mOct 2016Oct 2021Oct 2026
8.08.59.09.5mJanMarMayJulSepNov20268.08.59.09.5mJanAprJulOct2026

202120222023202420252026

Water level Normal range (10–90 %)

What this means

Forest Lake at South River is well above normal at 9.06 m.

That puts it 0.16 m above the median of 8.90 m for mid-October, based on 11 years of readings. A year ago it stood at 8.82 m (+0.23 m).

It has risen 0.04 m over the past 24 hours. In the last month it has stayed between 8.86 m and 9.06 m.

Lakes and reservoirs often sit lower in fall after a summer of evaporation and use, and recover with winter rain and spring snowmelt.

Compared with 11 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date
8.90 m0.16 m above the median for this date
Normal for this date
8.84 m – 9.00 m8 years in 10 fall in this range (11 years of records)
Same day last year
8.82 m+0.23 m
Lowest and highest in 30 days
8.86 m – 9.06 m
Lowest and highest in 12 months
8.54 m – 9.03 m

On the water at Forest Lake at South River

Well above normal, shoreline trees stand in the water and debris floats on the surface. Slow down near the edges.

Wear a life jacket on the water. Most boating deaths involve people who were not wearing one.

Weather at the gauge

Rain in the last 3 days: 5.7 mm.

18 Sun 13° 1° – Wind 25 km/h
19 Mon 16° 4° – Wind 13 km/h
20 Tue 13° 3° – Wind 13 km/h
21 Wed 14° 2° – Wind 10 km/h
22 Thu 13° 4° – Wind 12 km/h
23 Fri 12° 1° – Wind 10 km/h
24 Sat 12° 2° – Wind 21 km/h

Forecast: Open-Meteo

Sunrise 07:39 AM Sunset 06:28 PM Daylight 10 hr, 49 min First quarter 53%

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Bernard Lake at SundridgeLake, Bernard Lake 8.34 m Very low −0.01 m 14 km
North Magnetawan River above Pickerel LakeRiver gauge, North Magnetawan River 1.41 m Normal −0.02 m 16 km
North Magnetawan River near Burk'S FallsRiver gauge, North Magnetawan River 8.51 m Low +0.01 m 19 km
Commanda Creek near CommandaRiver gauge, Commanda Creek 1.06 m Low −0.01 m 23 km
Cecebe Lake at MagnetawanLake, Cecebe Lake 18.89 m Normal ±0 29 km
Doe Lake near KatrineLake, Doe Lake 7.09 m Normal +0.01 m 30 km
Magnetawan River near EmsdaleRiver gauge, Magnetawan River 7.50 m Low ±0 32 km
Ahmic Lake near Ahmic HarbourLake, Ahmic Lake 8.46 m Normal −0.02 m 36 km

Questions and answers

How does Forest Lake at South River compare with last year?

It is 0.23 m higher than on the same day last year, when the reading was 8.82 m.

What is a normal level for Forest Lake at South River in mid-October?

The median for mid-October is 8.90 m. In 8 years out of 10 the reading falls between 8.84 m and 9.00 m, based on 11 years of records.

What is the water level of Forest Lake at South River today?

On Oct 18, 2026, 05:00 PM EDT, the water level was 9.06 m. Up 0.04 m over the last 24 hours.

Is Forest Lake at South River rising or falling?

Up 0.04 m over the last 24 hours. Up 0.12 m over the last 7 days.

Is the level of Forest Lake at South River normal?

Very high for mid-October. Compared with 11 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:02DD023 (Agency page)
Coordinates
45.83969, -79.35692 (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 9.06 m 2026-10-18 21:00 Provisional

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How to cite

Environment and Climate Change Canada – Water Survey of Canada: Forest Lake at South River (eccc:02DD023). Accessed October 18, 2026 via Nivelmap, https://nivelmap.com/en/canada/ontario/forest-lake-at-south-river

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.