What is the current water level of Grassy Narrows Lake?

The current water level of Grassy Narrows Lake (Ontario) is 318.79 m, measured Nov 4, 10:25 a.m. at Water Survey of Canada gauge 05QE015.

Is the water level at Grassy Narrows Lake rising or falling?

The level is currently rising: 0.05 m over the past seven days.

How does the current level compare with the last 16 days?

Over the past 16 days the gauge ranged from 318.71 to 318.79 m. The current reading sits near the top of that range.

Where does the water level data for Grassy Narrows Lake come from?

Readings come from the Grassy Narrows Lake At Grassy Narrows gauge (05QE015) in Water Survey of Canada's realtime hydrometric network (ECCC), refreshed every 5 minutes to an hour depending on the station — loaded server-side on this page, fresh on every visit.

Grassy Narrows Lake water level

Water level recorded at Water Survey of Canada gauge 05QE015, refreshed every 5 minutes to an hour depending on the station.

Good to know 📏 Reading Water Survey of Canada gauges: what the level number means 💨 Gust factor: an indicator of jibe-crash risk

Current level

318.79m

measured Nov 4, 10:25 a.m.

24-hour change

steady

7-day change

+0.05m

rising

Range (16 days)

318.71–318.79m

lowest to highest daily reading

Water levels, day by day

Date	Water level	Δ vs previous day
Nov 4●	318.79	0
Nov 3	318.79	↑ 0.01
Nov 2	318.78	↑ 0.01
Nov 1	318.77	0
Oct 31	318.77	↑ 0.01
Oct 30	318.76	0
Oct 29	318.76	↑ 0.02
Oct 28	318.74	↑ 0.01
Oct 27	318.72	↓ 0.01
Oct 26	318.73	↓ 0.01
Oct 25	318.74	↑ 0.01
Oct 24	318.73	↑ 0.02
Oct 23	318.71	↓ 0.01
Oct 22	318.72	0

Readings fetched Nov 4, 11:15 a.m. (just now); the chart below loads the current trace live from Water Survey of Canada.

Grassy Narrows Lake water level — common questions

What is the current water level of Grassy Narrows Lake?: The current water level of Grassy Narrows Lake (Ontario) is 318.79 m, measured Nov 4, 10:25 a.m. at Water Survey of Canada gauge 05QE015.
Is the water level at Grassy Narrows Lake rising or falling?: The level is currently rising: 0.05 m over the past seven days.
How does the current level compare with the last 16 days?: Over the past 16 days the gauge ranged from 318.71 to 318.79 m. The current reading sits near the top of that range.
Where does the water level data for Grassy Narrows Lake come from?: Readings come from the Grassy Narrows Lake At Grassy Narrows gauge (05QE015) in Water Survey of Canada's realtime hydrometric network (ECCC), refreshed every 5 minutes to an hour depending on the station — loaded server-side on this page, fresh on every visit.

Water level history

Water level · WSC gauge 05QE015

Reading the chart. Water Survey of Canada gauges report water level in metres above the station’s datum. The absolute number matters less than the trend: a falling level means shrinking launch depth and exposed shoals, a rising one means floating debris and lost beach.

Water levels respond to dam operations, irrigation drawdown, snowmelt, and recent rainfall. For launch decisions, combine the trend here with the wind forecast — low water plus strong wind makes steep, tired ramps.