South DakotaReservoir, 4,753 acres
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3,169.50ft
Up 0.10 ft this week
Sailing
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Kayak and SUP
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Power boating
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Fishing
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Outlook. Monday: ENE wind 7 to 12 kt, gusts to 17 kt, high near 43°F, 80% chance of rain. Tuesday: WSW wind 7 to 26 kt, gusts to 42 kt, high near 67°F.
7-day wind forecastLoads when you scroll here
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Last hour of NOAA MRMS radar, 1 km resolution. Map data © OpenStreetMap contributors, OpenMapTiles, OpenFreeMap.
3,169.50ft above sea level
+0.10 ft in 7 days9.71 ft below the October normal
Reading from Oct 26, 2026. Shaded band: range of October averages on record; dashed line is the typical level.
Angostura Reservoir was at 3,169.50 ft on October 26, rising 0.10 ft over the past week. That is well below normal for October: the typical October level is 3,179.21 ft, so the lake is 9.71 ft below its usual mark.
Background reading: Angostura Reservoir on Wikipedia
Set in South Dakota, Angostura Reservoir is a 4,753-acre reservoir.
Water level on this page comes from the U.S. Army Corps of Engineers reading at Angostura Reservoir, SD, published through the Corps' CWMS data service. Wind, gusts and rain come from the National Weather Service forecast grid that covers the water.
Mid-sized lakes like this one tend to have shifty, gusty wind near shore and steadier pressure in the middle, which is why gust spread matters as much as average speed. Reservoir levels move with releases and inflow, so ramps and beaches can change week to week. The water level page tracks that day by day.
The go or no-go calls above are a starting point, not a guarantee. Read how we score conditions, and always check local rules and posted warnings before you launch.
The National Weather Service forecast for the lake from October 26: Monday: ENE wind 7 to 12 kt, gusts to 17 kt, high near 43°F, 80% chance of rain. The panel at the top of this page refreshes the current wind, gusts and direction when you open it and turns them into a call for sailing, paddling, power boating and fishing.
Angostura Reservoir was at 3,169.50 ft on October 26, rising 0.10 ft over the past week. That is well below normal for October: the typical October level is 3,179.21 ft, so the lake is 9.71 ft below its usual mark.
Angostura Reservoir covers about 4,753 acres (7.4 square miles) of surface water.
If Angostura is blown out, these are the closest alternatives. Tap through for their conditions.