Angostura Reservoir water level today
Reservoir in South Dakota
3,169.45ft
966.05 m · NGVD29
Measured · provisional
24 hours
▲ 0.02 ft
7 days
▲ 0.11 ft
30 days
–
What this means
The lake has risen 0.11 ft in 7 days.
Since 2026, the lowest daily level was 3,169.29 ft (Oct 2026) and the highest 3,169.45 ft (Oct 2026).
Angostura Reservoir level chart
Loading chart…
Measured
Normal range for the date (middle 50% of past years)
Records & details
- Highest
- 3,169.45 ft on Oct 21, 2026
- Lowest
- 3,169.29 ft on Oct 7, 2026
- Records from
- 2026 (0 years of daily data)
- Storage
- 58,560 acre-ft
- Water temperature
- Not measured here
Angostura Dam
- Height
- 193 ft
- Completed
- 1949
- Purposes
- Irrigation; Recreation
- Owner
- BUREAU OF RECLAMATION
- Normal storage
- 86,160 acre-ft
- Surface area
- 4,706 acres
National Inventory of Dams (U.S. Army Corps of Engineers). All dam facts →
Boat ramps on Angostura Reservoir
7 ramps without a name, on the map: 1234567
7 ramps listed. Links open the ramp's location on OpenStreetMap. Check the managing agency for closures, especially at low water. All South Dakota boat ramps →
Campgrounds near Angostura Reservoir
- Cold Brook Campground
- Cottonwood Springs Campground
Federal campgrounds from Recreation.gov; straight-line distance from the lake's gauge or dam.
Weather & wind
Today82°F · Sunny
Wind SW 6 to 22 mph
Wind SW 6 to 22 mph
Tonight43°F · Slight Chance Rain Showers
Wind W 16 to 21 mph
Wind W 16 to 21 mph
Saturday54°F · Mostly Sunny
Wind E 5 to 13 mph
Wind E 5 to 13 mph
Saturday Night38°F · Mostly Cloudy
Wind NE 5 to 9 mph
Wind NE 5 to 9 mph
Sunday46°F · Light Rain Likely
Wind NE 8 to 17 mph
Wind NE 8 to 17 mph
Sunday Night35°F · Light Rain
Wind NE 17 mph
Wind NE 17 mph
NOAA National Weather Service forecast for this lake's location, updated 6 h ago.