Lake levels
Mud Lake (South Dakota), SD
- gauge height
- 69.82 ft
- Condition
- Low for this time of year
- 7-day change
- -0.37 ft
- 30-day change
- -0.13 ft
- 1-year change
- -3.75 ft
Reading as of 2026-10-12 | the U.S. Geological Survey
- Since yesterday
- -0.15 ft
- 7-day change
- -0.37 ft
- 30-day change
- -0.13 ft
- 1-year change
- -3.75 ft
- Record high
- 80.78 ft
In brief
Mud Lake (South Dakota)'s gauge read 69.82 feet on Oct 12, 2026. That is lower than 100% of October readings since 2000.
Source: U.S. Geological Survey
Gauge height above a local reference point; not elevation above sea level.
Lake level timeline
Records and averages
| Current level | 69.82 ft |
|---|---|
| Record high | 80.78 ft (2001-04-19) |
| Record low | 65.22 ft (2002-06-14) |
| Average of all readings | 72.45 ft |
| Data span | 26 years (9,141 readings) |
Level schematic
Frequently asked questions
Is Mud Lake (South Dakota) full right now?
As of 2026-10-12, Mud Lake (South Dakota) sits at 69.82 ft, which is low for this time of year. Over the past 30 days the level has fallen 0.13 ft.
What is the water level at Mud Lake (South Dakota) today?
The most recent reading at Mud Lake (South Dakota) is 69.82 ft (2026-10-12), sourced from the U.S. Geological Survey. Readings on this page refresh automatically as the agency publishes new data.
What is the highest Mud Lake (South Dakota) has ever been?
The highest level for Mud Lake (South Dakota) in our records is 80.78 ft on 2001-04-19. The lowest is 65.22 ft on 2002-06-14. Our record covers about 26 years of readings.
Is Mud Lake (South Dakota) low for this time of year?
Compared with every October in our records, the current level is higher than 0% of them, which we classify as low 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 Mud Lake (South Dakota) low 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. Mud Lake (South Dakota) has fallen 0.13 ft over the past 30 days. For the operational reason on any given week, check the U.S. Geological Survey directly.
How much has Mud Lake (South Dakota) changed over the past year?
Mud Lake (South Dakota) is -3.75 ft compared with this date last year (69.82 ft today). The full-history chart above covers 26 years, with a record high of 80.78 ft and a record low of 65.22 ft.
Download and cite
Quote this reading
Mud Lake (South Dakota)'s gauge read 69.82 feet on Oct 12, 2026. That is lower than 100% of October readings since 2000.
Download the full record
mud-lake-south-dakota-sd-water-level-history.csv
How to cite
MyWaterLevel, “Mud Lake (South Dakota) water level, 2000 to 2026,” data from U.S. Geological Survey, https://mywaterlevel.com/lake/sd/mud-lake-south-dakota/, accessed Oct 13, 2026.
Source: the U.S. Geological Survey. All South Dakota lake levels. Readings are provisional and may be revised. About our data and methods.