Castor River at Russell
Water level and flow at gauge 02LB006, Ontario. The flow is normal for October (169% of the median). In the last 24 hours it has been falling.
Latest reading Oct 25, 11 AM local standard time (2 hours ago) · data checked · we check every 30 minutes
Compared with a normal October
Normal for October (middle half of 58 years of monthly averages): 0.61 m³/s21.6 cfs – 2.99 m³/s106 cfs, median 1.40 m³/s49.4 cfs. Right now it is at 169% of the median.
April 9, 2014 · approved records 1968–2025 (HYDAT). Right now the flow is 1% of that record.
463% higher than on October 25, 2025 (0.42 m³/s14.9 cfs)
approved daily mean (HYDAT)
Last 30 days
Hourly readings · shaded: normal range for this month
This year compared with past years
Daily flow
Normal range: monthly averages of 56 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. Wind southwest 20 km/h. High 17. UV index 3 or moderate.
Increasing cloudiness. 30 percent chance of showers before morning. Low 9.
Mainly cloudy. 60 percent chance of showers in the morning. Wind becoming northwest 20 km/h in the morning. High 14. UV index 3 or moderate.
Clear. Low minus 4.
Forecast for Ottawa (Richmond - Metcalfe) (10 km away) from Environment and Climate Change Canada, issued . Full official forecast ↗ · we check for new forecasts every 2 hours.
Nearby gauges
| South Castor RiverKenmore · 7 km | 1.34 m4.40 ft | Normal |
| South Nation RiverChesterville · 20 km | 5.61 m18.42 ft | No normal yet |
| Payne RiverBerwick · 20 km | 6.18 m20.27 ft | Normal |
| Bear BrookBourget · 24 km | 7.68 m25.21 ft | Normal |
| Becketts CreekCumberland Estates · 27 km | 6.67 m21.88 ft | Normal |
| Rideau RiverBelow Manotick · 28 km | 4.11 m13.47 ft | Very high |
About this gauge
Station: 02LB006 · Castor River at Russell
Location: 45.2625, -75.3438 · Ontario
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 Castor River at Russell today?
The latest reading (Oct 25, 11 AM, local standard time) is 3.21 m (10.54 ft) with a flow of 2.37 m³/s (83.7 cfs).
Is the Castor River at Russell high right now?
The flow is normal for October (169% of the median).
Is the Castor River rising or falling?
In the last 24 hours it has been falling.
What is the highest flow ever recorded on the Castor River at Russell?
209 m³/s (7,381 cfs) on April 9, 2014, the highest instantaneous flow in the approved records of the Water Survey of Canada (1968–2025). Events after 2025 are not yet in the approved archive.
How does the Castor River at Russell compare with a year ago?
The flow is 463% higher than on October 25, 2025 (0.42 m³/s (14.9 cfs), approved daily mean (HYDAT)).
Where does this data come from?
Gauge 02LB006 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.