Innisfil Creek at Alliston
Water level and flow at gauge 02ED029, Ontario. The flow is normal for October (85% of the median). In the last 24 hours it has been falling.
Latest reading Oct 25, 10 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 24 years of monthly averages): 0.67 m³/s23.7 cfs – 1.69 m³/s59.8 cfs, median 1.06 m³/s37.6 cfs. Right now it is at 85% of the median.
February 13, 2009 · approved records 2000–2023 (HYDAT). Right now the flow is 2% of that record.
Last 30 days
Hourly readings · shaded: normal range for this month
This year compared with past years
Daily flow
Normal range: monthly averages of 23 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 becoming light this afternoon. High 20. UV index 4 or moderate.
Partly cloudy. Low 9.
Mainly cloudy. 30 percent chance of showers in the morning. Wind northwest 20 km/h gusting to 40. High 13. UV index 3 or moderate.
Clear. Low minus 4.
Forecast for New Tecumseth (6 km away) from Environment and Climate Change Canada, issued . Full official forecast ↗ · we check for new forecasts every 2 hours.
Nearby gauges
| Nottawasaga RiverAlliston · 9 km | 6.73 m22.07 ft | Normal |
| Beeton CreekTottenham · 9 km | 5.68 m18.63 ft | Normal |
| Boyne RiverEarl Rowe Park · 10 km | 2.86 m9.38 ft | Below normal |
| Nottawasaga RiverBaxter · 14 km | 5.43 m17.80 ft | Normal |
| Schomberg RiverSchomberg · 15 km | 1.32 m4.33 ft | Normal |
| Pine RiverEverett · 16 km | -0.03 m-0.10 ft | Very low |
About this gauge
Station: 02ED029 · Innisfil Creek Near Alliston
Location: 44.1312, -79.7810 · 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 Innisfil Creek at Alliston today?
The latest reading (Oct 25, 10 AM, local standard time) is 1.91 m (6.27 ft) with a flow of 0.90 m³/s (31.9 cfs).
Is the Innisfil Creek at Alliston high right now?
The flow is normal for October (85% of the median).
Is the Innisfil Creek rising or falling?
In the last 24 hours it has been falling.
What is the highest flow ever recorded on the Innisfil Creek at Alliston?
59.3 m³/s (2,094 cfs) on February 13, 2009, the highest instantaneous flow in the approved records of the Water Survey of Canada (2000–2023). Events after 2023 are not yet in the approved archive.
Where does this data come from?
Gauge 02ED029 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.