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Thessalon River near Poplar Dale water level

River gauge, Thessalon River, Ontario, Canada

Directions

Very low for mid-October

Water level

1.88m Down 0.01 m over the last 24 hours

Flow
1.53 m³/s
2.0 2.5

History

2.02.32.52.8mOct 13Oct 15Oct 17Oct 18Oct 202.02.32.52.8mOct 13Oct 17Oct 20
2.02.5mSep 20Sep 28Oct 5Oct 13Oct 202.02.5mSep 20Oct 5Oct 20
2.02.53.0mOct 2025Jan 2026Apr 2026Jul 2026Oct 20262.02.53.0mOct 2025Apr 2026Oct 2026
2.02.53.0mJanMarMayJulSepNov20262.02.53.0mJanAprJulOct2026

20252026

Water level Normal range (10–90 %)

What this means

The Thessalon River near Poplar Dale is running far below normal at 1.88 m.

The median for mid-October is 2.36 m, based on 20 years of readings, so the water level is 0.48 m below typical. On the same day last year the reading was 2.34 m, a difference of −0.46 m.

It has dropped 0.01 m over the past 24 hours. Without real rain upstream, that is unlikely to change quickly. In the last month it has stayed between 1.76 m and 1.99 m.

Fall is often low-water season on rivers, and it usually takes a few days of steady rain to change that.

Compared with 20 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date
2.36 m0.48 m below the median for this date
Normal for this date
1.92 m – 2.70 m8 years in 10 fall in this range (20 years of records)
Same day last year
2.34 m−0.46 m
Lowest and highest in 30 days
1.76 m – 1.99 m
Lowest and highest in 12 months
1.76 m – 2.53 m

On the river

Outside the spring freshet, most rivers settle into a gentler pattern, broken by storms.

Flood advisories come from the provincial river forecast centre.

Weather at the gauge

No rain in the last 3 days.

20 Tue 14° 2° – Wind 11 km/h
21 Wed 13° 4° – Wind 9 km/h
22 Thu 17° 4° – Wind 9 km/h
23 Fri 15° 5° – Wind 14 km/h
24 Sat 17° 8° – Wind 17 km/h
25 Sun 15° 6° 4.5 mm Wind 20 km/h
26 Mon 6° 2° 12 mm Wind 14 km/h

Forecast: Open-Meteo

Sunrise 08:00 AM Sunset 06:41 PM Daylight 10 hr, 41 min Waxing gibbous 69%

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
St. Marys River near Garden RiverRiver gauge, St. Marys River 24.01 m Normal −0.10 m 32 km
Little White River near BellinghamRiver gauge, Little White River 2.81 m Low −0.01 m 36 km
Goulais River near SearchmontRiver gauge, Goulais River 7.33 m Very low −0.02 m 42 km
Root River at Sault Ste. MarieRiver gauge, Root River 13.00 m Very high −0.03 m 44 km
St. Marys River at Sault Ste. Marie, OntarioRiver gauge, St. Marys River 83,500 cfs Normal +5,500 cfs 29 mi
Goulais River near Kirby'S CornerRiver gauge, Goulais River 2.71 m Very low −0.01 m 49 km
Aubinadong River above Sesabic CreekRiver gauge, Aubinadong River 1.69 m Very low −0.01 m 54 km
Little White River below Boland RiverRiver gauge, Little White River 1.74 m Low −0.01 m 57 km

Questions and answers

Is the Thessalon River near Poplar Dale higher than last year?

No, it is 0.46 m lower than on the same day last year, when the reading was 2.34 m.

What is a normal level for the Thessalon River near Poplar Dale in mid-October?

The median for mid-October is 2.36 m. In 8 years out of 10 the reading falls between 1.92 m and 2.70 m, based on 20 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 1.88 m on the gauge does not mean the water is that deep.

What is the water level of Thessalon River near Poplar Dale today?

On Oct 20, 2026, 10:15 AM EDT, the water level was 1.88 m. Down 0.01 m over the last 24 hours.

Is Thessalon River near Poplar Dale rising or falling?

Down 0.01 m over the last 24 hours. Down 0.06 m over the last 7 days.

Is the level of Thessalon River near Poplar Dale normal?

Very low for mid-October. Compared with 20 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:02CA007 (Agency page)
Coordinates
46.53047, -83.70961 (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 1.88 m 2026-10-20 14:15 Provisional
Flow 1.53 m³/s 2026-10-20 14:15 Provisional

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How to cite

Environment and Climate Change Canada – Water Survey of Canada: Thessalon River near Poplar Dale (eccc:02CA007). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/canada/ontario/thessalon-river-near-poplar-dale

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