USGS · 06357800

GRAND RIVER

USGS · 06357800LIVE

Grand R at Little Eagle, SD

CORSON COUNTY, SD45.6578°N, -100.8183°W Updated 1 hr ago

FLOW RATE

33.7cfs

GAUGE HT

2.52ft

AIR TEMP

77°F

WIND

6mph ENE

FISH INDEX

63SCORE / 100

GOOD · 3 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 DAY

33.7cfs 88.7% vs avg

Optimal band: 31–41 cfs

PERIOD HIGH

40.8cfs

PERIOD LOW

33.7cfs

RUNNABLE

100%

last 1 day in band

Gauge Height

2.52ft

Precipitation History

Your History · Grand R at Little Eagle, SD

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Weather Conditions

WEATHER CONDITIONS

TODAY

103°

71°

MON

104°

72°

TUE

105°

77°

WED

105°

76°

THU

101°

76°

FRI

98°

67°

SAT

100°

71°

TIME

SUN

NOW

MON

TUE

WED

THU

TEMP

hourly forecast

79°

mild

79°

84°

88°

92°

96°

99°

101°

102°

103°

102°

101°

99°

93°

87°

84°

81°

78°

76°

75°

74°

73°

72°

73°

80°

85°

88°

92°

95°

97°

100°

101°

102°

103°

104°

102°

97°

93°

91°

89°

87°

85°

82°

81°

80°

77°

81°

85°

89°

93°

97°

100°

102°

103°

104°

105°

104°

102°

94°

89°

86°

83°

82°

79°

78°

76°

77°

82°

87°

92°

96°

99°

101°

103°

104°

105°

104°

102°

96°

90°

87°

84°

85°

86°

85°

81°

79°

76°

77°

81°

86°

90°

92°

94°

97°

100°

101°

98°

97°

96°

93°

89°

85°

81°

77°

WIND

mph · gust · dir

7mph S

G 15 mph

G15

G18

G17

G18

G20

G19

G20

G22

SSE

G18

SSE

G17

SSE

G17

G15

ESE

G15

ESE

G14

G17

G19

G18

G17

G29

SSW

G31

SSW

G29

SSW

G23

SSW

G23

SSW

G23

SSW

G21

G19

SSE

G22

SSE

G30

SSE

G32

G33

G30

G29

G27

G23

G24

G11

G17

SSE

G22

SSE

G21

SSE

G17

G15

SSE

G14

SSE

G13

SSE

G15

G16

G22

G25

G14

SSE

ESE

SSE

G11

SSE

G11

G15

SSE

G16

SSE

G20

SSE

G16

G14

SSE

G14

SSE

G17

SSE

G21

SSE

G23

SSE

G22

SSE

G17

G21

G22

G16

G10

SSE

G16

SSE

G16

G12

SSW

NNW

G15

NNW

G18

G22

G24

G25

G24

NNE

PRECIP

chance %

CLOUDS

cover %

clear

13%

26%

85%

12%

10%

78%

58%

100%

16%

59%

100%

25%

100%

86%

100%

32%

100%

74%

100%

81%

62%

36%

15%

PRESSURE

hPa · trend

958

TemperatureWind / GustsPrecipitationCloud coverPressure

Nowscroll →

FISH INDEX

Temperature

Warm

Wind

Light

Pressure

Rising — Slow

Moon Phase

Average

DAYLIGHT

SUNRISE

05:06 AM

SUNSET

08:31 PM

15H 25M OF DAYLIGHT

MOON PHASE

Waning Crescent

7% illuminated

Station Location

45.6578, -100.8183

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DATA · USGS · NOAA · NWSUPDATED 2026-07-12 05:15 UTC

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