Reservoir · Oklahoma · United States · BOR RISE
Lake of the Arbuckles
Lake of the Arbuckles and Arbuckle Dam
64.7% full
Capacity
134.25 hm³
Volume stored
87 hm³
Coordinates
34.431°N, 97.031°W
Last updated
2026-09-12
Current fill
64.7%vs 7 days ago
-0.1%losing
vs 1 year ago
-4.3%year-over-year
7-day trend
→stable
Data source: BOR RISE — US Bureau of Reclamation — 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: 2026-09-12.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 34.431, -97.031 · Open in Google Maps
About Lake of the Arbuckles
As of September 12, 2026, Lake of the Arbuckles is filled to 64.7% of its total capacity, holding roughly 87 hm³ of water out of a maximum 134 hm³. At this level the reservoir is within its normal operating range.
Over the most recent week on record the fill level has held broadly steady (-0.1 pts), and it is 4.3 points below its level on the same date a year earlier.
Across the readings we hold for Lake of the Arbuckles — 1824 data points between September 15, 2021 and September 12, 2026 — the level has ranged from a low of 58.8% (February 3, 2023) to a high of 85.8% (April 28, 2024). On average the reservoir is fullest around June and at its lowest around January.
It is operated by BOR primarily for multiple purposes. It lies within the Oklahoma basin at 34.431°N, 97.031°W.
Key facts
- Current fill level
- 64.7%
- Water stored
- 87 hm³
- Total capacity
- 134 hm³
- 7-day change
- ▼ 0.1 pts
- Year-on-year
- ▼ 4.3 pts
- Primary use
- Multipurpose
- River basin
- Oklahoma
- Operator
- BOR
- Coordinates
- 34.431°N, 97.031°W
- Last updated
- September 12, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 12 Sep 2026 | 64.7% | 87 |
| 11 Sep 2026 | 64.7% | 87 |
| 10 Sep 2026 | 64.7% | 87 |
| 9 Sep 2026 | 64.5% | 87 |
| 8 Sep 2026 | 64.6% | 87 |
| 7 Sep 2026 | 64.6% | 87 |
| 6 Sep 2026 | 64.7% | 87 |
| 5 Sep 2026 | 64.8% | 87 |
| 4 Sep 2026 | 64.8% | 87 |
| 3 Sep 2026 | 64.9% | 87 |
| 2 Sep 2026 | 65.0% | 87 |
| 1 Sep 2026 | 65.1% | 87 |