Reservoir · Oklahoma · United States · USACE CWMS
Altus Lake
26.5% full
Capacity
165.9 hm³
Volume stored
44 hm³
Coordinates
34.888°N, 99.296°W
Last updated
2026-07-30
Current fill
26.5%vs 7 days ago
0.0%stable
vs 1 year ago
+1.5%year-over-year
7-day trend
→stable
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: 2026-07-30.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 34.888, -99.296 · Open in Google Maps
About Altus Lake
As of July 30, 2026, Altus Lake is filled to 26.5% of its total capacity, holding roughly 44 hm³ of water out of a maximum 166 hm³. At this level the reservoir is low.
Over the most recent week on record the fill level has held broadly steady (+0.0 pts), and it is 1.5 points above its level on the same date a year earlier.
Across the readings we hold for Altus Lake — 330 data points between July 31, 2021 and July 30, 2026 — the level has ranged from a low of 15.5% (November 19, 2021) to a high of 40.5% (July 31, 2021). On average the reservoir is fullest around August and at its lowest around December.
It is operated by USACE primarily for multiple purposes. It lies within the Oklahoma basin at 34.888°N, 99.296°W.
Key facts
- Current fill level
- 26.5%
- Water stored
- 44 hm³
- Total capacity
- 166 hm³
- 7-day change
- No change
- Year-on-year
- ▲ 1.5 pts
- Primary use
- Multipurpose
- River basin
- Oklahoma
- Operator
- USACE
- Coordinates
- 34.888°N, 99.296°W
- Last updated
- July 30, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 30 Jul 2026 | 26.5% | 44 |
| 29 Jul 2026 | 26.5% | 44 |
| 28 Jul 2026 | 26.6% | 44 |
| 27 Jul 2026 | 26.7% | 44 |
| 26 Jul 2026 | 26.8% | 44 |
| 25 Jul 2026 | 26.9% | 45 |
| 24 Jul 2026 | 26.9% | 45 |
| 23 Jul 2026 | 27.0% | 45 |
| 22 Jul 2026 | 27.1% | 45 |
| 21 Jul 2026 | 27.1% | 45 |
| 20 Jul 2026 | 27.2% | 45 |
| 19 Jul 2026 | 27.2% | 45 |
Frequently asked questions
What is the current water level of Altus Lake?
As of July 30, 2026, Altus Lake is at 26.5% of its capacity, holding approximately 44 hm³ of water, according to USACE CWMS (US Army Corps of Engineers) data.
Is Altus Lake reservoir full?
No. As of July 30, 2026, Altus Lake is low at 26.5% of its capacity, so it is not full.
Is the water level at Altus Lake rising or falling?
The level at Altus Lake has been broadly stable over the latest week on record (0.0 points).
How much water can Altus Lake hold?
Altus Lake has a total capacity of 166 hm³.
Where is Altus Lake reservoir located?
Altus Lake is located in Oklahoma, United States, within the Oklahoma basin (coordinates 34.888°N, 99.296°W).
What is Altus Lake used for?
Altus Lake is used primarily for multiple purposes, and is managed by USACE.