Current level
246.84ft
+0.78 ft vs long-term average
3.54 ft above chart datum (LWD)
Status unavailable
A verified operating range is not available for this lake.
Vs long-term average
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Lake Ontario is currently at 246.84 ft, 0.78 ft above its long-term average. The current Lake Ontario lake level showed no meaningful change since the last reading and remains up 0.04 ft over the past seven days.
Lake Ontario is 0.78 ft above its long-term average, and its current lake level has risen 0.04 ft over the past seven days.
246.84 ft · Updated 56 minutes ago · NOAA / U.S. Army Corps of Engineers (coordinated network)
Current level
246.84ft
+0.78 ft vs long-term average
3.54 ft above chart datum (LWD)
Status unavailable
A verified operating range is not available for this lake.
Vs long-term average
Since last reading
Previous readingAug 23246.88 ft
7-day change
7-day trend: Stable
8 daily readings in the last 7 days
30-day change
31 daily readings in the last 30 days
Selected for a day on the water. Useful, practical gear for a typical day out on the lake.
Useful, practical gear for a typical day out on the lake.
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Elevation (ft) IGLD85 · MSL
Published elevations from lake operators when provided by the data service.
Aug 24, 2026
246.88 ft
0 ft
Aug 23, 2026
246.88 ft
+0.05 ft
Aug 22, 2026
246.83 ft
+0.09 ft
Aug 21, 2026
246.74 ft
-0.04 ft
Aug 20, 2026
246.78 ft
-0.07 ft
Aug 19, 2026
246.85 ft
+0.03 ft
Aug 18, 2026
246.82 ft
-0.02 ft
| Date | Level (ft) | Change (ft) |
|---|---|---|
| Aug 24, 2026 | 246.88 | 0 |
| Aug 23, 2026 | 246.88 | +0.05 |
| Aug 22, 2026 | 246.83 | +0.09 |
| Aug 21, 2026 | 246.74 | -0.04 |
| Aug 20, 2026 | 246.78 | -0.07 |
| Aug 19, 2026 | 246.85 | +0.03 |
| Aug 18, 2026 | 246.82 | -0.02 |
| Aug 17, 2026 | 246.84 | -0.02 |
| Aug 16, 2026 | 246.86 | +0.02 |
| Aug 15, 2026 | 246.84 | -0.09 |
| Aug 14, 2026 | 246.93 | -0.08 |
| Aug 13, 2026 | 247.01 | -0.04 |
| Aug 12, 2026 | 247.05 | -0.01 |
| Aug 11, 2026 | 247.06 | 0 |
The current water level at Lake Ontario is 246.84 ft (updated 56 minutes ago). You can track the Lake Ontario lake level on the interactive chart and daily history above.
Over the past seven days the Lake Ontario lake level has held relatively steady — the current 7-day trend is Stable. The history chart above shows the full trend.
Based on the latest reading, Lake Ontario is currently 0.78 ft above long-term average elevation on Lake Insights.
Readings refresh when NOAA / U.S. Army Corps of Engineers (coordinated network) publishes new gauge data — typically daily for most reservoirs. The timestamp above the chart shows when the latest observation arrived on Lake Insights.
Definitions for pool targets, datums, and how elevation readings are labeled.
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