USGS · 06485950

BIG SIOUX RIVER

USGS · 06485950LIVE

BIG SIOUX RIVER AT SIOUX CITY, IA

NORTH SIOUX CITY, SD42.5244°N, -96.4805°W Updated 133 d ago

FLOW RATE

374cfs

GAUGE HT

8.95ft

AIR TEMP

75°F

WIND

6mph S

FISH INDEX

69SCORE / 100

GREAT · 4 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 YEAR

374cfs 55.1% vs avg

Optimal band: 762–1,030 cfs

PERIOD HIGH

3,703cfs

PERIOD LOW

69cfs

RUNNABLE

23%

last 1 year in band

Gauge Height

8.95ft

Precipitation History

Your History · BIG SIOUX RIVER AT SIOUX CITY, IA

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Weather Conditions

WEATHER CONDITIONS

TODAY

92°

68°

MON

93°

68°

TUE

97°

65°

WED

98°

65°

THU

99°

68°

FRI

100°

71°

SAT

101°

74°

TIME

SUN

NOW

MON

TUE

WED

THU

FRI

TEMP

hourly forecast

91°

mild

91°

92°

90°

87°

82°

79°

77°

75°

73°

72°

71°

70°

69°

68°

69°

73°

78°

84°

87°

89°

91°

92°

93°

91°

87°

82°

79°

75°

72°

69°

67°

66°

65°

67°

72°

78°

82°

86°

90°

93°

95°

96°

97°

96°

94°

91°

87°

81°

75°

72°

71°

69°

68°

67°

66°

65°

68°

74°

79°

84°

88°

91°

94°

96°

98°

97°

95°

93°

89°

82°

77°

74°

72°

71°

70°

69°

68°

70°

77°

82°

86°

90°

93°

96°

98°

99°

98°

97°

94°

90°

84°

81°

76°

73°

72°

71°

72°

WIND

mph · gust · dir

6mph SE

G 7 mph

G10

ESE

G10

ESE

G11

ESE

G12

G13

G12

G13

G12

G13

G12

G11

G10

G16

G15

G12

G13

SSE

G14

SSE

G15

SSE

G14

SSE

G14

SSE

G14

SSE

G14

SSE

G16

SSE

G17

SSE

G14

G16

SSE

G17

SSE

G18

SSE

G22

G16

G14

G10

G16

G14

SSW

G12

SSW

G12

G11

SSW

G11

G12

SSE

G19

SSE

G23

SSE

G22

G17

SSE

G15

G14

G13

SSW

G10

SSW

SSE

G17

SSE

G21

SSE

G23

SSE

G20

G17

G15

G13

G11

SSE

G18

SSE

G26

SSE

G26

SSE

G24

SSE

G22

SSE

G21

SSE

G21

SSE

G22

SSE

G22

SSE

G22

SSE

G22

PRECIP

chance %

CLOUDS

cover %

clear

26%

13%

33%

16%

21%

PRESSURE

hPa · trend

982

TemperatureWind / GustsPrecipitationCloud coverPressure

Nowscroll →

FISH INDEX

Temperature

Warm

Wind

Light

Pressure

Stable

Moon Phase

Average

DAYLIGHT

SUNRISE

05:59 AM

SUNSET

09:03 PM

15H 4M OF DAYLIGHT

MOON PHASE

Waning Crescent

5% illuminated

Station Location

42.5244, -96.4805

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DATA · USGS · NOAA · NWSUPDATED 2026-03-01 00:00 UTC

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