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Raisin River near Williamstown water level

River gauge, Raisin River, Ontario, Canada

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Right now

Very high for mid-October

Water level

9.78m Down 0.08 m over the last 24 hours

Flow
12.1 m³/s
9.0 9.5

History

History
9.09.5mOct 11Oct 13Oct 15Oct 16Oct 189.09.5mOct 11Oct 15Oct 18
9.09.5mSep 18Sep 26Oct 3Oct 11Oct 189.09.5mSep 18Oct 3Oct 18
910mOct 2025Jan 2026Apr 2026Jul 2026Oct 2026910mOct 2025Apr 2026Oct 2026
910mJanMarMayJulSepNov2026910mJanAprJulOct2026

20252026

Water level Normal range (10–90 %)

What this means

The gauge at Raisin River near Williamstown shows 9.78 m, well above normal for mid-October.

The median for mid-October is 9.11 m, based on 21 years of readings, so the water level is 0.67 m above typical. On the same day last year the reading was 8.89 m, a difference of +0.89 m.

The level is falling, down 0.08 m over the past 24 hours. Over the past 30 days it has moved between 9.05 m and 9.87 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
9.11 m0.67 m above the median for this date
Normal for this date
8.92 m – 9.45 m8 years in 10 fall in this range (21 years of records)
Same day last year
8.89 m+0.89 m
Lowest and highest in 30 days
9.05 m – 9.87 m
Lowest and highest in 12 months
8.90 m – 9.86 m

High water at Raisin River near Williamstown

Official flood alerts and warnings come from the provincial river forecast centre. They cover areas, not single gauges, so a warning can be in force before this reading looks dramatic.

Keep children and dogs well back from the edge, and stay off flooded footpaths and towpaths.

About the Raisin River

Raisin River (Ontario)

The Raisin River is a river in South Stormont and South Glengarry, United Counties of Stormont, Dundas and Glengarry in eastern Ontario, Canada, with the watershed encompassing portions of North Stormont, North Glengarry and the city of Cornwall as well. It empties into Lake Saint Francis on the Saint Lawrence River near the community of Lancaster.

Read more on Wikipedia

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

Weather at the gauge

The forecast is not available right now.

Sunrise 07:19 AM Sunset 06:10 PM Daylight 10 hr, 51 min First quarter 52%

Map

Other gauges on the Raisin River

Gauge Level Compared with normal 24 hours Distance
Raisin River at Black RiverRiver gauge, Raisin River 5.22 m Very high −0.13 m 20 km

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Garry River near AlexandriaRiver gauge, Garry River 81.55 m High +0.01 m 17 km
Riviere Beaudette near Glen NevisRiver gauge, Riviere Beaudette 8.62 m Very high −0.05 m 17 km
Riviere Delisle near Glen NormanRiver gauge, Riviere Delisle 1.74 m Very high −0.12 m 18 km
Riviere Delisle near AlexandriaRiver gauge, Riviere Delisle 1.76 m Very high −0.03 m 19 km
Little Salmon River at BombayRiver gauge, Little Salmon River 3.55 ft Below flood stage −0.81 ft 15 mi
St. Regis River at Brasher CenterRiver gauge, St. Regis River 7.08 ft Below flood stage −0.15 ft 21 mi
Payne River near BerwickRiver gauge, Payne River 6.40 m Very high −0.16 m 37 km
Rigaud River near St. EugeneRiver gauge, Rigaud River 1.94 m High −0.25 m 40 km

Questions and answers

Is the Raisin River near Williamstown higher than last year?

Yes, it is 0.89 m higher than on the same day last year, when the reading was 8.89 m.

What is a normal level for the Raisin River near Williamstown in mid-October?

The median for mid-October is 9.11 m. In 8 years out of 10 the reading falls between 8.92 m and 9.45 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 9.78 m on the gauge does not mean the water is that deep.

What is the water level of Raisin River near Williamstown today?

On Oct 18, 2026, 01:55 PM EDT, the water level was 9.78 m. Down 0.08 m over the last 24 hours.

Is Raisin River near Williamstown rising or falling?

Down 0.08 m over the last 24 hours. Up 0.68 m over the last 7 days.

Is the level of Raisin River near Williamstown 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.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
Environment and Climate Change Canada – Water Survey of Canada
Station code
eccc:02MC001 (Agency page)
Coordinates
45.15547, -74.63814 (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 9.78 m 2026-10-18 17:55 Provisional
Flow 12.1 m³/s 2026-10-18 17:55 Provisional

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How to cite

Environment and Climate Change Canada – Water Survey of Canada: Raisin River near Williamstown (eccc:02MC001). Accessed October 18, 2026 via Nivelmap, https://nivelmap.com/en/canada/ontario/raisin-river-near-williamstown

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.