Waterlands
Big Sioux River
USGS · 06479438
BIG SIOUX RIVER
USGS · 06479438LIVE

Big Sioux R nr Watertown, SD

SOUTH DAKOTA44.9424°N, -97.1463°W Updated 54 min ago
FLOW RATE
263cfs
GAUGE HT
6.92ft
AIR TEMP
80°F
WIND
13mph SW
FISH INDEX
44SCORE / 100
FAIR · 2 OF 5
Flow Rate Historical Avg
MEDIAN FLOW RATE · 1 DAY
263cfs 241.6% vs avg
Optimal band: 361–489 cfs
PERIOD HIGH
592cfs
PERIOD LOW
263cfs
RUNNABLE
36%
last 1 day in band

Gauge Height

6.92ft
Precipitation History
Your History · Big Sioux R nr Watertown, SD

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Weather Conditions
WEATHER CONDITIONS
TODAY
93°
69°
MON
92°
67°
TUE
100°
65°
WED
100°
66°
THU
100°
66°
FRI
103°
73°
SAT
111°
77°
TIME
SUN
3
NOW
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
MON
12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
TUE
12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
WED
12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
THU
12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
FRI
12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
TEMP
hourly forecast
92°
mild
92°
93°
93°
92°
90°
87°
82°
78°
76°
74°
73°
71°
70°
69°
68°
67°
68°
74°
79°
83°
86°
88°
90°
91°
92°
92°
92°
92°
89°
85°
81°
77°
74°
72°
71°
70°
69°
67°
67°
65°
67°
73°
80°
85°
89°
93°
95°
98°
99°
100°
100°
100°
98°
92°
85°
82°
80°
78°
75°
72°
69°
69°
67°
66°
69°
74°
81°
85°
90°
94°
94°
96°
98°
99°
100°
100°
99°
93°
86°
80°
78°
73°
72°
69°
68°
67°
67°
66°
69°
74°
79°
84°
88°
92°
95°
98°
99°
100°
100°
99°
98°
94°
87°
83°
82°
82°
80°
79°
77°
76°
74°
73°
73°
77°
WIND
mph · gust · dir
13mph SSW
G 16 mph
13
G16
SSW
12
G15
SSW
12
G15
S
12
G16
S
11
G18
SSW
10
G19
S
7
G15
S
6
G16
S
7
G16
SSE
7
G17
S
7
G19
S
7
G18
S
8
G19
S
7
G19
S
6
G18
S
6
G16
S
6
G16
S
9
G27
SSW
13
G26
SSW
15
G27
SSW
16
G24
SSW
16
G23
SSW
16
G22
SSW
15
G22
SSW
15
G20
SSW
14
G18
SSW
13
G18
SSW
14
G20
S
13
G21
S
10
G18
S
8
G17
S
8
G19
S
7
G17
S
8
G20
S
9
G21
S
9
G19
S
7
G18
S
7
G18
S
7
G21
S
7
G22
S
8
G25
S
12
G24
SSW
12
G19
SW
12
G16
SW
11
G13
SW
11
G12
SW
10
G11
SW
9
G10
SSW
9
G10
SSW
8
G10
SSW
8
G10
SSW
9
SSW
10
SSW
8
G14
S
10
G15
S
11
G20
S
13
G25
S
13
G30
S
11
G30
S
9
G29
S
9
G27
S
8
G23
S
8
G14
S
8
G11
S
7
G17
SSW
10
G16
SW
9
G12
SW
6
G7
WSW
4
SW
3
SSE
6
G7
SE
7
SSE
6
G7
SE
6
G7
ESE
7
G8
ESE
7
G8
ESE
6
G9
ESE
9
G20
E
11
G21
SE
14
G23
E
12
G23
ESE
10
G19
E
8
G16
E
9
G16
E
8
G15
E
8
G12
ESE
7
G10
ESE
7
G9
ESE
7
G11
ESE
8
G9
ESE
8
G10
SSE
10
G11
SSE
11
G12
SSE
10
G13
SSE
11
G12
SSE
12
G13
SSE
13
SSE
14
SSE
14
SSE
14
SSE
13
SSE
11
G16
SSE
12
G24
SE
18
G32
SE
18
G35
SE
17
G37
SSE
17
G36
SSE
16
G36
S
14
G35
S
12
G34
S
12
G33
S
11
G31
S
11
G29
S
12
G25
S
PRECIP
chance %
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
1%
1%
1%
1%
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
0%
0%
0%
0%
0%
0%
0%
CLOUDS
cover %
0%
clear
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
4%
0%
4%
2%
0%
0%
6%
5%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
6%
6%
5%
0%
0%
0%
45%
44%
5%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
5%
7%
100%
74%
39%
0%
7%
5%
11%
21%
6%
100%
72%
40%
84%
10%
48%
5%
5%
5%
10%
50%
17%
60%
33%
59%
100%
83%
17%
15%
0%
12%
43%
69%
13%
76%
7%
10%
15%
16%
25%
29%
19%
4%
3%
31%
PRESSURE
hPa · trend
959
959958958960960957957960958956958959956954957958955954956
TemperatureWind / GustsPrecipitationCloud coverPressure
Nowscroll →
FISH INDEX
44
Temperature
Too Hot
Wind
Moderate
Pressure
Rising — Slow
Moon Phase
Average
DAYLIGHT
SUNRISE
05:54 AM
SUNSET
09:14 PM
15H 20M OF DAYLIGHT
MOON PHASE
Waning Crescent
5% illuminated

Station Location

44.9424, -97.1463
Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-12 14:00 UTC
Site #06479438·USGS

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