Grindstone Creek at Millgrove
Water level and flow at gauge 02HB028, Ontario. The level is normal for October. In the last 24 hours it has been steady.
Latest reading Oct 25, 10 AM local standard time (about an hour ago) · data checked · we check every 30 minutes
Compared with a normal October
Normal for October (middle half of 20 years of monthly averages): 2.24 m7.34 ft – 2.33 m7.63 ft, median 2.29 m7.50 ft.
March 14, 2010 · approved records 2006–2021 (HYDAT). Right now the level is 0.99 m3.26 ft below that record.
0.01 m0.02 ft lower than on October 25, 2025 (2.33 m7.64 ft)
approved daily mean (HYDAT)
Last 30 days
Hourly readings · shaded: normal range for this month
This year compared with past years
Daily water level
Normal range: monthly averages of 19 years (lighter band: 10th–90th percentile). Past years: approved daily means from HYDAT, the Water Survey of Canada archive (the latest year published is 2025). 2026: daily means of the provisional real-time readings collected by Canada River Levels since October 22, 2026.
Weather near this gauge
Sunny. High 19. UV index 4 or moderate.
Partly cloudy. Low 8.
Mainly cloudy. High 17. UV index 3 or moderate.
Clearing. Low plus 3.
Forecast for Hamilton (10 km away) from Environment and Climate Change Canada, issued . Full official forecast ↗ · we check for new forecasts every 2 hours.
Nearby gauges
| Bronte CreekCarlisle · 7 km | 2.48 m8.14 ft | Normal |
| Grindstone CreekHidden Valley Park · 8 km | 8.33 m27.33 ft | Above normal |
| Spencer CreekDundas · 8 km | 6.08 m19.94 ft | Normal |
| Mountsberg CreekCarlisle · 8 km | 2.69 m8.84 ft | Very high |
| Spencer CreekHighway No. 5 · 10 km | 0.52 m1.71 ft | Very low |
| Spencer CreekWestover · 11 km | 13.78 m45.22 ft | Very high |
About this gauge
Station: 02HB028 · Grindstone Creek Near Millgrove
Location: 43.3349, -79.9491 · Ontario
Same river: Hidden Valley Park
Water levels are measured from a local reference point at each gauge, not from sea level, so they cannot be compared between gauges.
Official sources
For flood warnings, advisories and approved data, always use these official services:
Questions
What is the water level of the Grindstone Creek at Millgrove today?
The latest reading (Oct 25, 10 AM, local standard time) is 2.32 m (7.62 ft).
Is the Grindstone Creek at Millgrove high right now?
The level is normal for October.
Is the Grindstone Creek rising or falling?
In the last 24 hours it has been steady.
What is the highest water level ever recorded on the Grindstone Creek at Millgrove?
3.32 m (10.88 ft) on March 14, 2010, the highest instantaneous level in the approved records of the Water Survey of Canada (2006–2021). Events after 2021 are not yet in the approved archive.
How does the Grindstone Creek at Millgrove compare with a year ago?
The level is 0.01 m (0.02 ft) lower than on October 25, 2025 (2.33 m (7.64 ft), approved daily mean (HYDAT)).
Where does this data come from?
Gauge 02HB028 of the Water Survey of Canada (Environment and Climate Change Canada). Real-time data are provisional and may be revised. We check for new readings every 30 minutes. Canada River Levels is not an official source.