Current level
871ft
Status unavailable
Water Level History
- Current
- 871.00 ft
- 24h
- -0.01 ft
- 7d
- -0.09 ft
- 30d
- -0.61 ft
Elevation (ft) Water-surface elevation (ft)
Reference line is designed full pool.
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Follow Grand Lake St. Marys — FreeLake Level Context
Current lake level
Grand Lake St. Marys is currently 871.00 ft. The lake has fallen 0.09 ft over the past 7 days and 0.61 ft over the past 30 days.
Grand Lake St. Marys Level Details
Reference elevations, recent daily readings, data sources, and answers to common questions.
Conditions & Reference
Level status
Summary updating
This comparison needs the current level and full pool. We use the live feed when present, otherwise the latest daily summary when it includes a pool comparison.
- DatumVertical reference for published pool and stage elevations at this lake (from the lake catalog).
- Water-surface elevation (ft)
- Elevation reference
- Not available
- Source
- U.S. Geological Survey (USGS)
Reference levels
No published reference elevations for this lake.
Surrounding county drought
No Drought
No official drought (D1–D4) reported for the surrounding county.
Severity
NoneExtreme
- Trend
- Stable
Daily level summary
| Date | Level | Change |
|---|---|---|
| Oct 25, 2026 | 870.99 | -0.01 |
| Oct 24, 2026 | 871 | -0.01 |
| Oct 23, 2026 | 871.01 | -0.01 |
| Oct 22, 2026 | 871.02 | -0.02 |
| Oct 21, 2026 | 871.04 | -0.01 |
| Oct 20, 2026 | 871.05 | -0.02 |
| Oct 19, 2026 | 871.07 | -0.01 |
| Oct 18, 2026 | 871.08 | -0.02 |
| Oct 17, 2026 | 871.1 | -0.01 |
| Oct 16, 2026 | 871.11 | +0.05 |
| Oct 15, 2026 | 871.06 | -0.14 |
| Oct 14, 2026 | 871.2 | +0.01 |
| Oct 13, 2026 | 871.19 | 0 |
| Oct 12, 2026 | 871.19 | -0.02 |