Reservoir · Kentucky · United States · USACE CWMS
Grayson Lake
73.1% full
Capacity
36.25 hm³
Volume stored
27 hm³
Vs month average
98% of normal
Coordinates
38.252°N, 82.986°W
Last updated
2026-10-29
Current fill
73.1%vs 7 days ago
-1.2 pplosing
vs 1 year ago
N/A7-day trend
↓falling
Drought context
Storage vs October average
98%of normal
73.1% full on 2026-10-29, against an average of 74.8% for October across 2 years of readings (-1.7 points).
Drought Monitor at this site · 27 October 2026
Nonenot in a drought category
Grayson Lake's coordinates fall outside every category on the weekly U.S. Drought Monitor map. That describes local conditions — rainfall, soil moisture, streamflow — not the reservoir's storage. Kentucky drought figures →
Data source: USACE CWMS — US Army Corps of Engineers — daily reservoir storage volume. Capacity is the design (normal full-pool) capacity from the US National Inventory of Dams (NID); fill % = current volume ÷ design capacity. Last reading: 2026-10-29.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 38.252°N, 82.986°W · Open in Google Maps
About Grayson Lake
As of October 29, 2026, Grayson Lake is filled to 73.1% of its total capacity, holding 26.5 hm³ of water out of a maximum 36.25 hm³. At this level the reservoir is within its normal operating range.
Over the most recent week on record the fill level has fallen by 1.2 percentage points.
Across the readings we hold for Grayson Lake — 100 data points between October 30, 2021 and October 29, 2026 — the level has ranged from a low of 50.2% (December 5, 2021) to a high of 82.5% (October 30, 2021).
It is operated by USACE primarily for multiple purposes. It is at 38.252°N, 82.986°W.
Key facts
- Current fill level
- 73.1% of total capacity
- Water stored
- 26.5 hm³
- Total capacity
- 36.25 hm³
- 7-day change
- ▼ 1.2 pp
- Primary use
- Multipurpose
- Operator
- USACE
- Coordinates
- 38.252°N, 82.986°W
- Last updated
- October 29, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 29 Oct 2026 | 73.1% | 26.5 |
| 28 Oct 2026 | 73.2% | 26.53 |
| 27 Oct 2026 | 73.4% | 26.59 |
| 26 Oct 2026 | 73.5% | 26.66 |
| 25 Oct 2026 | 73.8% | 26.74 |
| 24 Oct 2026 | 73.9% | 26.8 |
| 23 Oct 2026 | 74.1% | 26.87 |
| 22 Oct 2026 | 74.3% | 26.93 |
| 21 Oct 2026 | 74.5% | 27.01 |
| 20 Oct 2026 | 74.7% | 27.08 |
| 19 Oct 2026 | 74.8% | 27.13 |
| 18 Oct 2026 | 75.0% | 27.17 |