Belle Fourche Reservoir Water Level
South Dakota · updated daily from the U.S. Bureau of Reclamation
60.62 ft
Belle Fourche Reservoir is current reading available and falling (-1.26 ft in the last 7 days).
Change since yesterday: -0.13 ft
Reading as of 2026-08-15
Where Belle Fourche Reservoir sits historically
Today's level compared with every reading in our 0.3-year record for this lake.
Since yesterday
-0.13 ft
7-day change
-1.26 ft
30-day change
-5.59 ft
1-year change
— ft
Last 30 days
Last 12 months
Belle Fourche Reservoir records and averages
| Current level | 60.62 ft |
|---|---|
| Record high | 73.53 ft (2026-05-03) |
| Record low | 60.62 ft (2026-08-15) |
| Average of all readings | 69.05 ft |
| Data span | 0.3 years (121 readings) |
Frequently asked questions
Is Belle Fourche Reservoir full right now?
As of 2026-08-15, Belle Fourche Reservoir sits at 60.62 ft, which is current reading available.Over the past 30 days the level has fallen 5.59 ft.
What is the water level at Belle Fourche Reservoir today?
The most recent reading is 60.62 ft (2026-08-15), sourced from the U.S. Bureau of Reclamation. Readings on this page refresh automatically as the agency publishes new data.
What is the highest Belle Fourche Reservoir has ever been?
The highest level in our records is 73.53 ft on 2026-05-03. The lowest is 60.62 ft on 2026-08-15. Our record covers about 0.3 years of readings.
Why is Belle Fourche Reservoir 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. Belle Fourche Reservoir has fallen 5.59 ft over the past 30 days. For the operational reason on any given week, check the U.S. Bureau of Reclamation directly.
How much has Belle Fourche Reservoir changed over the past year?
Year-over-year comparison is not available for this lake yet. The full-history chart above covers 0.3 years, with a record high of 73.53 ft and a record low of 60.62 ft.
Nearby lakes in South Dakota
Source: the U.S. Bureau of Reclamation. Readings are provisional and subject to revision by the publishing agency. All South Dakota lake levels.