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Grindstone Creek near Millgrove water level

River gauge, Grindstone Creek, Ontario, Canada

Directions

Normal for mid-October

Water level

2.25m Steady over the last 24 hours

2.2 2.3 2.4

History

2.22.32.4mOct 12Oct 14Oct 15Oct 17Oct 192.22.32.4mOct 12Oct 15Oct 19
2.22.32.4mSep 19Sep 26Oct 4Oct 11Oct 192.22.32.4mSep 19Oct 4Oct 19
2.22.42.6mOct 2025Jan 2026Apr 2026Jul 2026Oct 20262.22.42.6mOct 2025Apr 2026Oct 2026
2.22.42.6mJanMarMayJulSepNov20262.22.42.6mJanAprJulOct2026

20252026

Water level Normal range (10–90 %)

What this means

Grindstone Creek near Millgrove is at 2.25 m, in the normal range for mid-October.

The median for mid-October is 2.29 m, based on 21 years of readings, so the water level is 0.04 m below typical. On the same day last year the reading was 2.30 m, a difference of −0.04 m.

It has barely moved over the past 24 hours. In the last month it has stayed between 2.20 m and 2.30 m.

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

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

Key numbers

Median for this date
2.29 m0.04 m below the median for this date
Normal for this date
2.19 m – 2.38 m8 years in 10 fall in this range (21 years of records)
Same day last year
2.30 m−0.04 m
Lowest and highest in 30 days
2.20 m – 2.30 m
Lowest and highest in 12 months
2.21 m – 2.43 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.

About Grindstone Creek

Grindstone Creek (Algoma District)

Grindstone Creek is a stream in the Unorganized North Part of Algoma District in Northeastern Ontario, Canada. It is in the Great Lakes Basin and is a left tributary of the Mississagi River.

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: 2.5 mm. Rain that falls upstream can take hours or days to show up at a river gauge.

19 Mon 19° 5° – Wind 19 km/h
20 Tue 14° 7° – Wind 19 km/h
21 Wed 13° 7° – Wind 12 km/h
22 Thu 19° 7° – Wind 9 km/h
23 Fri 12° 8° – Wind 21 km/h
24 Sat 16° 6° – Wind 12 km/h
25 Sun 18° 9° – Wind 23 km/h

Forecast: Open-Meteo

Sunrise 07:39 AM Sunset 06:32 PM Daylight 10 hr, 53 min First quarter 58%

Map

Other gauges on Grindstone Creek

Gauge Level Compared with normal 24 hours Distance
Grindstone Creek at Hidden Valley ParkRiver gauge, Grindstone Creek 8.32 m High −0.01 m 7.7 km

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Bronte Creek at CarlisleRiver gauge, Bronte Creek 2.49 m Normal ±0 6.8 km
Spencer Creek at DundasRiver gauge, Spencer Creek 6.02 m Normal −0.01 m 7.8 km
Mountsberg Creek near CarlisleRiver gauge, Mountsberg Creek 2.69 m High ±0 8.2 km
Spencer Creek at Highway No. 5River gauge, Spencer Creek 0.53 m Normal −0.01 m 10 km
Spencer Creek near WestoverRiver gauge, Spencer Creek 13.99 m Very high ±0 11 km
Ancaster Creek at AncasterRiver gauge, Ancaster Creek 0.12 m Low ±0 12 km
Bronte Creek near ZimmermanRiver gauge, Bronte Creek 5.84 m Normal ±0 13 km
Mountsberg Creek below Mountsberg ReservoirRiver gauge, Mountsberg Creek 1.15 m High ±0 15 km

Questions and answers

Is Grindstone Creek near Millgrove higher than last year?

No, it is 0.04 m lower than on the same day last year, when the reading was 2.30 m.

What is a normal level for Grindstone Creek near Millgrove in mid-October?

The median for mid-October is 2.29 m. In 8 years out of 10 the reading falls between 2.19 m and 2.38 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 2.25 m on the gauge does not mean the water is that deep.

What is the water level of Grindstone Creek near Millgrove today?

On Oct 19, 2026, 06:00 AM EDT, the water level was 2.25 m. Steady over the last 24 hours.

Is Grindstone Creek near Millgrove rising or falling?

Steady over the last 24 hours. Steady over the last 7 days.

Is the level of Grindstone Creek near Millgrove normal?

Normal 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:02HB028 (Agency page)
Coordinates
43.33486, -79.94906 (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 2.25 m 2026-10-19 10:00 Provisional

Download

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How to cite

Environment and Climate Change Canada – Water Survey of Canada: Grindstone Creek near Millgrove (eccc:02HB028). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/canada/ontario/grindstone-creek-near-millgrove

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