USGS · 06479438

BIG SIOUX RIVER

USGS · 06479438LIVE

Big Sioux R nr Watertown, SD

CODINGTON COUNTY, SD44.9424°N, -97.1463°W Updated 36 min ago

FLOW RATE

19.1cfs

GAUGE HT

4.05ft

AIR TEMP

58°F

WIND

10mph WNW

FISH INDEX

63SCORE / 100

GOOD · 3 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 DAY

19.1cfs 57.0% vs avg

Optimal band: 16–21 cfs

PERIOD HIGH

22cfs

PERIOD LOW

13.3cfs

RUNNABLE

82%

last 1 day in band

Gauge Height

4.05ft

Precipitation History

SPONSORED

Weather Conditions

WEATHER CONDITIONS

TODAY

70°

54°

THU

73°

51°

FRI

78°

54°

SAT

83°

59°

SUN

103°

70°

MON

98°

74°

TUE

94°

64°

TIME

WED

NOW

THU

FRI

SAT

SUN

MON

TEMP

hourly forecast

68°

mild

68°

69°

70°

69°

67°

63°

61°

58°

57°

55°

54°

53°

52°

51°

53°

58°

63°

66°

68°

69°

71°

72°

73°

72°

71°

67°

64°

63°

62°

57°

56°

55°

54°

56°

62°

65°

66°

65°

64°

71°

72°

75°

78°

77°

75°

73°

72°

71°

70°

69°

67°

64°

63°

62°

61°

60°

59°

60°

63°

67°

70°

74°

77°

80°

81°

83°

82°

80°

78°

75°

73°

71°

72°

71°

70°

71°

72°

73°

76°

79°

83°

87°

90°

94°

96°

99°

101°

103°

100°

95°

92°

89°

87°

85°

83°

82°

81°

79°

78°

76°

WIND

mph · gust · dir

15mph NW

G 19 mph

G19

G20

G18

G19

G18

G19

G17

G15

WNW

G12

WSW

WNW

WSW

G11

NNW

G13

G12

G11

NNW

G10

NNW

NNE

ENE

G10

ESE

G11

ESE

G13

ESE

G15

ESE

G10

G12

G11

G12

G14

G13

G15

G16

G15

ESE

G15

G16

SSE

G17

SSE

G18

G20

SSE

G20

G19

G22

G28

G30

G31

G34

G30

SSE

G31

SSE

G33

G35

SSE

G33

SSE

G32

SSE

G33

SSE

G36

SSE

G34

SSE

G30

SSE

G29

SSE

G28

SSE

G28

SSE

G29

SSE

G28

SSE

G26

SSE

G27

SSE

G28

SSE

G33

G36

G37

SSE

G38

SSE

G35

G33

G28

G27

G28

G26

G24

SSE

G23

SSE

G24

SSE

G25

G24

SSW

G22

SSW

G24

SSW

G24

SSW

G22

SSW

G15

G20

G29

G36

G39

G38

G37

SSE

PRECIP

chance %

12%

23%

30%

21%

19%

10%

37%

CLOUDS

cover %

84%

mostly

84%

32%

24%

69%

34%

100%

16%

81%

54%

23%

100%

17%

97%

100%

27%

100%

64%

100%

93%

62%

22%

100%

39%

86%

100%

35%

22%

91%

100%

63%

100%

35%

100%

68%

100%

16%

46%

39%

63%

94%

100%

41%

100%

55%

PRESSURE

hPa · trend

957

TemperatureWind / GustsPrecipitationCloud coverPressure

Nowscroll →

FISH INDEX

Temperature

Ideal

Wind

Moderate

Pressure

Rising — Slow

Moon Phase

Average

DAYLIGHT

SUNRISE

05:43 AM

SUNSET

09:19 PM

15H 36M OF DAYLIGHT8H 43M REMAINING

MOON PHASE

Waxing Gibbous

69% illuminated

Station Location

44.9424, -97.1463

Loading map…

DATA · USGS · NOAA · NWSUPDATED 2026-06-24 12:36 UTC

Site #06479438·USGS

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