Mud Lake

Name: Mud Lake (South Dakota) water level
Creator: U.S. Geological Survey

Above White Rock Dam Near White Rock, SD · South Dakota · USGS gauge

Water level · NAVD88

970.39FT

Gauge elevation · no % full published

7 days −0.01 ft30 days −0.31 ftvs last year −2.53 ft

Reading for Oct 25, 2026, 18:30 UTC · page refreshed Oct 25, 20:19 UTC
Source: U.S. Geological Survey (Water Data for the Nation)

Worth going today?This Afternoon

Windy or wet – use caution

Light wind, 66% chance of rain

Wind3 mph

Rain66%

Temp53°F

Level970.4 ft

This AfternoonLight Rain Likely · 53°F
N 3 mph · rain 66%

TonightLight Rain Likely · 33°F
N 2 to 7 mph · rain 72%

NWS forecast for the gauge location. Good = wind ≤ 10 mph and rain ≤ 30%; storms are flagged. Not safety advice – check local conditions, closures and warnings.

Field notes

As of Oct 25, 2026, Mud Lake stood at 970.39 (NAVD88) ft.

The level has been roughly steady over the past week (−0.01 ft).

Compared with a year ago (972.92 ft, same time of day), the lake is 2.53 ft lower.

Readings come from the USGS gauge “MUD LAKE ABOVE WHITE ROCK DAM NEAR WHITE ROCK, SD”. USGS data are provisional and may be revised. Gauge elevations are not directly comparable between lakes because each uses its own datum.

Lake facts

Gauge / station	MUD LAKE ABOVE WHITE ROCK DAM NEAR WHITE ROCK, SD
Elevation datum	ft (NAVD88)
Gauge location	45.8613, -96.5726

Nearby lakes

Lake Kampeska72 mi SW1,718.40 ft−0.01 ft Lake Ashtabula108 mi NW · ND1,266.70 ft−0.33 ft Jamestown126 mi NW · ND1,429.63 ft−0.41 ft Eastern Stump Lake162 mi NW · ND1,451.08 ft−0.06 ft Homme Reservoir185 mi N · ND1,080.71 ft−0.03 ft

Common questions

Is Mud Lake rising or falling?

Over the last 7 days it changed −0.01 ft and over 30 days −0.31 ft.

How full is Mud Lake?

USGS publishes the water surface elevation for this gauge but not a percent-full figure, so we don't show one rather than estimate it.

How often is this page updated?

The page is rebuilt automatically every day from USGS's published data. Values can be revised later by the source agency.

Where does the data come from?

The U.S. Geological Survey's Water Data API (api.waterdata.usgs.gov), which publishes readings from USGS and partner gauges. Forecasts come from the National Weather Service.

Latest instantaneous reading; 7-day, 30-day and year-ago changes compare readings at the same hour. USGS data are provisional and subject to revision. USGS data are provisional and subject to revision. This page is not affiliated with or endorsed by the USGS. See data sources.