Lake levels
Grand Lake (Oklahoma), OK
- water level
- 741.98 ft
- Condition
- Below average for this time of year
- 7-day change
- -0.02 ft
- Below full
- 1.02 ft
- 30-day change
- -0.82 ft
Reading as of 2026-10-13 | the U.S. Army Corps of Engineers
- Since yesterday
- -0.01 ft
- 7-day change
- -0.02 ft
- 30-day change
- -0.82 ft
- Below full
- 1.02 ft
- 1-year change
- -0.37 ft
In brief
Grand Lake (Oklahoma) stood at 741.98 feet on Oct 13, 2026, 1.02 feet below its full pool of 743 feet. That is lower than 75% of October readings since 2014.
Source: U.S. Army Corps of Engineers
Lake level timeline
Records and averages
| Current level | 741.98 ft |
|---|---|
| Full pool (conservation) | 743.00 ft |
| Flood pool | 755.00 ft |
| Record high | 754.91 ft (2019-06-24) |
| Record low | 740.91 ft (2018-10-09) |
| Average of all readings | 743.63 ft |
| Data span | 12 years (4,366 readings) |
Level schematic
Frequently asked questions
Is Grand Lake (Oklahoma) full right now?
As of 2026-10-13, Grand Lake (Oklahoma) sits at 741.98 ft, which is below average for this time of year. That is 1.02 ft below full pool of 743.00 ft. Over the past 30 days the level has fallen 0.82 ft.
What is the water level at Grand Lake (Oklahoma) today?
The most recent reading at Grand Lake (Oklahoma) is 741.98 ft (2026-10-13), sourced from the U.S. Army Corps of Engineers. Readings on this page refresh automatically as the agency publishes new data.
What is the highest Grand Lake (Oklahoma) has ever been?
The highest level for Grand Lake (Oklahoma) in our records is 754.91 ft on 2019-06-24. The lowest is 740.91 ft on 2018-10-09. Our record covers about 12 years of readings.
Is Grand Lake (Oklahoma) low for this time of year?
Compared with every October in our records, the current level is higher than 25% of them, which we classify as below average for this time of year. Seasonal comparison matters more than the raw number, because most reservoirs draw down predictably through late summer and refill over winter and spring.
Why is Grand Lake (Oklahoma) changing right now?
Reservoir levels move for four main reasons: rainfall and runoff into the basin, releases through the dam for downstream water supply, power generation or flood control, evaporation during hot months, and seasonal drawdown schedules set by the operating agency. Grand Lake (Oklahoma) has fallen 0.82 ft over the past 30 days. For the operational reason on any given week, check the U.S. Army Corps of Engineers directly.
How much has Grand Lake (Oklahoma) changed over the past year?
Grand Lake (Oklahoma) is -0.37 ft compared with this date last year (741.98 ft today). The full-history chart above covers 12 years, with a record high of 754.91 ft and a record low of 740.91 ft.
Download and cite
Quote this reading
Grand Lake (Oklahoma) stood at 741.98 feet on Oct 13, 2026, 1.02 feet below its full pool of 743 feet. That is lower than 75% of October readings since 2014.
Download the full record
grand-lake-oklahoma-ok-water-level-history.csv
How to cite
MyWaterLevel, “Grand Lake (Oklahoma) water level, 2014 to 2026,” data from U.S. Army Corps of Engineers, https://mywaterlevel.com/lake/ok/grand-lake-oklahoma/, accessed Oct 13, 2026.
Source: the U.S. Army Corps of Engineers. All Oklahoma lake levels. Readings are provisional and may be revised. About our data and methods.