Lewis & Clark Marina

Lewis & Clark Marina is a marina in Yankton, South Dakota. It is a full-service marina with over 500 wet slips on the Upper Missouri River. Tritoon rentals are available.

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Operator details

Vessels: Powerboat

Boater reviews

3.7on Google, 19 reviews

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Around here

Around Lewis & Clark Marina

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Data Source: Recreation.gov · Public land: USGS PAD-US

Typical flow by month

1982 to 2026

The water at Lewis & Clark Marina typically runs highest in June, at a median 1,350 cfs, and lowest in February, at 118 cfs. The highest flow on record for any single day is 45,300 cfs, in 2019.

Show the numbers

Typical flow by month at James River near Yankton, SD, in cfs
Month	Typical (cfs)	Usual range (cfs)
January	140	78 to 310
February	118	74 to 264
March	681	204 to 1,510
April	1,255	652 to 4,605
May	1,350	588 to 4,300
June	1,350	588 to 3,645
July	1,110	246 to 3,260
August	495	119 to 1,970
September	458	109 to 1,730
October	443	92 to 1,250
November	308	117 to 603
December	245	102 to 385

Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 30 years of record. Statistics published by the US Geological Survey for James River near Yankton, SD (site 06478513). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.

Current conditions

Today · Fri

84Go/ 100

CloudyHigh 42°F, low 36°FRain 0%Wind 7 kt, gusts 11

Streamflow

733 cfs

Normal (74th)

Water level

4.32 ft

Air quality

16 Good

Santee Sioux - Environmental Office monitor, 38 km

National Weather ServiceBelow flood stage

Flood stage 12 ft. NWS reads 4.42 ft here.

NWS issues forecasts here only during high water.

Forecast from Open-Meteo global models (NOAA & ECMWF). Flood stages and forecasts: NOAA National Weather Service. Air quality: EPA Office of Atmospheric Protection via EPA AirNow. Preliminary data, not verified. See full conditions →

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