Reservoir · Oklahoma · United States · USACE CWMS
Eufaula Lake
81.8% full
Capacity
2,855.02 hm³
Volume stored
2334 hm³
Vs month average
101% of normal
Coordinates
35.307°N, 95.362°W
Last updated
2026-10-28
Current fill
81.8%vs 7 days ago
+0.4 ppgaining
vs 1 year ago
N/A7-day trend
→stable
Drought context
Storage vs October average
101%of normal
81.8% full on 2026-10-28, against an average of 81.0% for October across 2 years of readings (+0.8 points).
Drought Monitor at this site · 20 October 2026
D3extreme drought
The ground at Eufaula Lake's coordinates falls inside the D3 area of the weekly U.S. Drought Monitor map. That describes local conditions — rainfall, soil moisture, streamflow — not the reservoir's storage. Oklahoma 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: 2026-10-28.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 35.307°N, 95.362°W · Open in Google Maps
About Eufaula Lake
As of October 28, 2026, Eufaula Lake is filled to 81.8% of its total capacity, holding 2,334 hm³ of water out of a maximum 2,855 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (+0.4 pp).
Across the readings we hold for Eufaula Lake — 312 data points between October 29, 2021 and October 28, 2026 — the level has ranged from a low of 78.6% (October 16, 2026) to a high of 104.6% (June 30, 2026). On average the reservoir is fullest around June and at its lowest around October.
It is operated by USACE primarily for multiple purposes. It is at 35.307°N, 95.362°W.
Key facts
- Current fill level
- 81.8% of total capacity
- Water stored
- 2,334 hm³
- Total capacity
- 2,855 hm³
- 7-day change
- ▲ 0.4 pp
- Primary use
- Multipurpose
- Operator
- USACE
- Coordinates
- 35.307°N, 95.362°W
- Last updated
- October 28, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 28 Oct 2026 | 81.8% | 2,334 |
| 27 Oct 2026 | 81.7% | 2,333 |
| 26 Oct 2026 | 81.8% | 2,335 |
| 25 Oct 2026 | 81.7% | 2,333 |
| 24 Oct 2026 | 81.7% | 2,333 |
| 23 Oct 2026 | 81.6% | 2,331 |
| 22 Oct 2026 | 81.5% | 2,327 |
| 21 Oct 2026 | 81.4% | 2,323 |
| 20 Oct 2026 | 81.2% | 2,318 |
| 19 Oct 2026 | 80.8% | 2,306 |
| 18 Oct 2026 | 80.1% | 2,286 |
| 17 Oct 2026 | 79.3% | 2,265 |