USGS · 06479500

BIG SIOUX RIVER

USGS · 06479500LIVE

Big Sioux R ab Watertown, SD

RAUVILLE TOWNSHIP, SD45.0061°N, -97.1644°W Updated 20 min ago

FLOW RATE

14.9cfs

GAUGE HT

3.60ft

AIR TEMP

58°F

WIND

11mph NW

FISH INDEX

63SCORE / 100

GOOD · 3 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 DAY

14.9cfs 79.8% vs avg

Optimal band: 14–19 cfs

PERIOD HIGH

18.9cfs

PERIOD LOW

14.3cfs

RUNNABLE

100%

last 1 day in band

Gauge Height

3.60ft

Precipitation History

SPONSORED

Weather Conditions

WEATHER CONDITIONS

TODAY

69°

53°

THU

73°

50°

FRI

77°

54°

SAT

84°

60°

SUN

103°

70°

MON

98°

73°

TUE

90°

64°

TIME

WED

NOW

THU

FRI

SAT

SUN

MON

TEMP

hourly forecast

67°

mild

67°

68°

69°

68°

66°

63°

60°

58°

56°

55°

54°

53°

52°

51°

50°

52°

58°

62°

65°

68°

70°

71°

72°

73°

72°

71°

68°

63°

62°

60°

55°

54°

57°

62°

65°

64°

67°

65°

70°

72°

75°

77°

75°

73°

72°

71°

70°

69°

65°

63°

62°

61°

60°

61°

63°

66°

70°

74°

77°

80°

82°

83°

84°

82°

81°

79°

75°

73°

71°

70°

71°

72°

73°

76°

79°

83°

87°

90°

93°

96°

98°

101°

103°

99°

93°

91°

87°

85°

84°

82°

81°

79°

78°

77°

WIND

mph · gust · dir

15mph NW

G 20 mph

G20

G19

G17

G15

WNW

G13

G11

G14

NNW

WNW

G10

WNW

G12

NNW

G13

NNW

G13

G12

G11

G10

NNW

G10

NNW

NNE

G10

ESE

G13

ESE

G14

ESE

G12

G11

G12

G14

G13

G15

G16

G15

G16

G17

SSE

G18

G20

SSE

G20

G19

G22

G28

ESE

G30

G31

G34

G30

SSE

G31

SSE

G33

SSE

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

G35

G33

G28

G27

G28

G26

G24

SSE

G23

SSE

G24

SSE

G25

G24

SSW

G22

SSW

G24

SSW

G24

SSW

G22

SSW

G15

WSW

G20

SSW

G29

G36

G39

G38

G37

PRECIP

chance %

13%

24%

30%

22%

19%

10%

36%

CLOUDS

cover %

31%

few

31%

36%

35%

70%

99%

100%

10%

20%

21%

31%

12%

20%

100%

28%

25%

47%

100%

66%

100%

21%

100%

50%

91%

100%

99%

100%

41%

11%

38%

100%

42%

100%

75%

100%

81%

51%

49%

57%

77%

100%

59%

100%

86%

66%

PRESSURE

hPa · trend

957

TemperatureWind / GustsPrecipitationCloud coverPressure

Nowscroll →

FISH INDEX

Temperature

Ideal

Wind

Moderate

Pressure

Rising — Slow

Moon Phase

Average

DAYLIGHT

SUNRISE

05:42 AM

SUNSET

09:19 PM

15H 37M OF DAYLIGHT8H 44M REMAINING

MOON PHASE

Waxing Gibbous

69% illuminated

Station Location

45.0061, -97.1644

Loading map…

DATA · USGS · NOAA · NWSUPDATED 2026-06-24 12:35 UTC

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