Waterlands
Big Sioux River
USGS · 06479500
BIG SIOUX RIVER
USGS · 06479500LIVE

Big Sioux R ab Watertown, SD

RAUVILLE TOWNSHIP, SD45.0061°N, -97.1644°W Updated 20 hr ago
FLOW RATE
219cfs
GAUGE HT
7.41ft
AIR TEMP
91°F
WIND
15mph SSW
FISH INDEX
50SCORE / 100
GOOD · 3 OF 5
Flow Rate Historical Avg
MEDIAN FLOW RATE · 30 DAY
219cfs 56.8% vs avg
Optimal band: 8–10 cfs
PERIOD HIGH
246cfs
PERIOD LOW
2cfs
RUNNABLE
13%
last 30 day in band

Gauge Height

7.41ft
Precipitation History
Your History · Big Sioux R ab Watertown, SD

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Weather Conditions
WEATHER CONDITIONS
TODAY
91°
69°
MON
92°
67°
TUE
101°
65°
WED
100°
67°
THU
100°
68°
FRI
101°
74°
SAT
108°
75°
TIME
SUN
8
NOW
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
9
am
10
am
11
am
12
pm
1
pm
2
pm
TEMP
hourly forecast
85°
mild
85°
81°
77°
75°
74°
72°
71°
71°
70°
68°
67°
69°
74°
79°
82°
85°
87°
89°
90°
91°
92°
92°
91°
89°
85°
80°
77°
74°
72°
70°
69°
68°
67°
66°
65°
67°
73°
79°
83°
87°
91°
95°
99°
100°
101°
101°
100°
99°
93°
85°
82°
80°
75°
74°
72°
71°
69°
68°
67°
69°
75°
81°
86°
90°
93°
96°
98°
100°
100°
100°
100°
99°
94°
86°
80°
76°
74°
73°
72°
71°
70°
69°
68°
69°
75°
81°
87°
91°
94°
97°
99°
100°
100°
100°
99°
97°
93°
87°
82°
81°
81°
79°
78°
78°
77°
75°
74°
74°
78°
83°
88°
92°
95°
97°
99°
WIND
mph · gust · dir
10mph SSW
G 20 mph
10
G20
SSW
7
G14
SSW
7
G17
S
7
G19
S
8
G19
S
7
G19
S
9
G20
S
9
G19
SSW
7
G17
SSW
7
G16
SSW
6
G16
SSW
8
G17
SSW
12
G28
SSW
14
G28
SW
15
G27
SSW
15
G24
SSW
17
G24
SSW
17
G24
SSW
17
G23
SSW
16
G25
SSW
15
G22
SSW
14
G20
SSW
14
G20
SSW
12
G20
SSW
10
G18
S
9
G18
S
8
G18
S
7
G19
SSW
7
G19
S
6
G17
S
7
G17
S
7
G16
S
7
G16
S
7
G16
S
6
G15
S
5
G15
S
8
G24
SSW
11
G23
SW
11
G20
SW
12
G16
SW
11
G12
SW
9
G10
SW
8
SSW
7
SSW
7
S
6
G7
S
6
SSE
5
SSE
7
G9
ESE
11
E
9
G12
E
8
G13
SE
9
G20
SSE
9
G24
S
9
G17
SSW
8
G14
SSW
8
G11
SSW
7
G10
SSW
7
SSW
6
G13
SSW
8
G12
SW
7
G10
SSW
7
SSW
6
G7
S
7
G9
SSE
8
G9
SSE
9
SSE
9
SE
9
SE
9
SE
10
SE
12
SSE
13
G19
S
9
G23
S
9
G19
SE
9
G23
ESE
8
G27
SE
8
G25
SSE
7
G22
SSE
8
G17
S
8
G15
S
9
G19
SSW
9
G23
SSW
9
G24
SSW
11
G20
SSW
11
G17
SSW
11
G14
SSW
10
G12
S
10
G13
S
11
G13
SSE
12
G14
SSE
14
SSE
15
SSE
16
SSE
15
SSE
15
SSE
14
G21
SSE
11
G27
SSE
12
G30
SE
17
G33
SE
18
G36
SSE
17
G35
SSE
16
G35
S
15
G33
S
13
G31
S
12
G29
S
12
G28
S
13
G29
S
14
G26
S
16
G24
S
18
G22
S
18
G21
S
18
G20
S
18
G20
S
18
G20
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%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
0%
0%
0%
0%
0%
0%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
CLOUDS
cover %
0%
clear
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
82%
100%
37%
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%
5%
6%
29%
77%
100%
100%
51%
5%
5%
5%
6%
100%
100%
44%
7%
6%
12%
6%
56%
14%
11%
13%
13%
6%
5%
10%
100%
100%
8%
26%
11%
48%
8%
0%
5%
5%
7%
5%
5%
0%
0%
0%
0%
6%
6%
7%
11%
5%
8%
100%
65%
90%
100%
100%
100%
100%
78%
100%
100%
5%
5%
0%
5%
5%
4%
3%
2%
2%
2%
4%
6%
PRESSURE
hPa · trend
957
957957958959957956958958956957958956953955956955953955955953
TemperatureWind / GustsPrecipitationCloud coverPressure
Nowscroll →
FISH INDEX
50
Temperature
Too Hot
Wind
Moderate
Pressure
Stable
Moon Phase
Average
DAYLIGHT
SUNRISE
05:54 AM
SUNSET
09:14 PM
15H 20M OF DAYLIGHT
MOON PHASE
Waning Crescent
4% illuminated

Station Location

45.0061, -97.1644
Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-12 00:00 UTC
Site #06479500·USGS

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