Waterlands
Rock River
USGS · 05446500
ROCK RIVER
USGS · 05446500LIVE

ROCK RIVER NEAR JOSLIN, IL

ILLINOIS41.5561°N, -90.1853°W Updated 1 hr ago
FLOW RATE
8,585cfs
AIR TEMP
79°F
WIND
4mph NE
FISH INDEX
75SCORE / 100
GREAT · 4 OF 5
Flow Rate Historical Avg
MEDIAN FLOW RATE · 30 DAY
8,585cfs 6.5% vs avg
Optimal band: 8,114–10,978 cfs
PERIOD HIGH
20,089cfs
PERIOD LOW
4,944cfs
RUNNABLE
45%
last 30 day in band
Precipitation History
Your History · ROCK RIVER NEAR JOSLIN, IL

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Weather Conditions
WEATHER CONDITIONS
TODAY
84°
69°
MON
84°
66°
TUE
82°
63°
WED
84°
67°
THU
81°
71°
FRI
82°
69°
SAT
81°
68°
TIME
MON
1
NOW
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
3
pm
4
pm
5
pm
6
pm
7
pm
TEMP
hourly forecast
70°
mild
70°
69°
68°
67°
67°
66°
68°
71°
74°
77°
79°
81°
83°
84°
84°
84°
84°
84°
82°
79°
75°
73°
71°
69°
68°
67°
65°
64°
64°
63°
65°
70°
75°
78°
80°
81°
81°
81°
82°
82°
82°
82°
81°
76°
73°
72°
71°
70°
69°
69°
68°
68°
67°
67°
69°
73°
76°
78°
80°
82°
84°
84°
84°
84°
84°
82°
80°
77°
74°
74°
74°
72°
72°
72°
72°
71°
71°
72°
72°
74°
76°
76°
78°
79°
79°
80°
78°
76°
81°
80°
79°
77°
73°
72°
72°
71°
72°
72°
70°
70°
70°
69°
71°
74°
76°
78°
79°
79°
79°
80°
81°
82°
81°
80°
79°
WIND
mph · gust · dir
4mph NE
G 13 mph
4
G13
NE
4
G11
NNE
3
G7
NNE
5
G8
N
5
G11
N
4
G9
N
6
G13
NNE
7
G13
NE
6
G11
NE
8
G12
NE
9
G12
NE
9
G12
NE
9
G11
ENE
9
G11
ENE
8
G10
ENE
8
G9
ENE
7
G9
ENE
6
G8
ENE
6
G9
ENE
5
G10
ENE
4
G10
ENE
3
G13
E
4
G14
ESE
2
G11
E
4
G7
N
4
G6
NNE
2
G8
E
1
G6
NNE
4
N
3
NE
1
G3
NE
2
G3
N
1
G2
ENE
2
G3
NE
3
G6
E
4
G7
NE
4
G6
NE
4
G5
NNE
2
G3
NE
2
ESE
2
SE
1
SSE
2
SE
4
SE
4
SE
4
SE
5
SSE
4
SSE
4
S
4
G5
S
4
G5
SSW
6
G8
SSW
5
G8
SW
5
G8
SSW
5
G10
SSW
6
G10
S
7
G12
SSW
8
G12
SSW
8
G11
SW
8
G12
SW
8
G12
SW
9
G13
SW
10
G13
SW
11
G14
SW
9
G15
SW
9
G16
SW
7
G15
SSW
7
G11
S
7
G16
S
8
G17
S
8
G18
S
9
G20
S
9
G22
SSW
10
G20
SSW
10
G19
SSW
8
G20
SSW
9
G17
SSW
8
G16
SW
7
G17
S
7
G24
S
11
G22
SW
10
G24
WSW
11
G26
WSW
10
G13
W
5
G9
ENE
5
SE
6
S
6
G7
SW
8
G9
WSW
8
G10
WSW
7
G10
WSW
5
WNW
6
G10
W
4
W
5
G7
WNW
5
WNW
5
G7
N
3
G12
N
3
G11
NW
3
G16
WNW
4
G13
NNW
1
G11
SSW
2
G12
NNW
5
G10
N
7
G9
N
7
G8
NNE
8
NE
7
G9
ENE
6
G10
ENE
5
G9
NE
4
G7
NE
4
G7
NNE
4
G10
NNE
4
G15
NE
4
G20
NE
PRECIP
chance %
1%
1%
1%
1%
1%
1%
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%
3%
3%
3%
3%
3%
3%
22%
22%
22%
22%
22%
22%
19%
19%
19%
19%
19%
19%
26%
26%
26%
26%
26%
26%
24%
24%
24%
24%
24%
24%
42%
42%
42%
42%
42%
42%
17%
17%
17%
17%
17%
17%
9%
9%
9%
9%
9%
9%
CLOUDS
cover %
3%
clear
3%
1%
2%
5%
0%
3%
2%
2%
8%
5%
5%
27%
27%
21%
11%
12%
2%
0%
0%
0%
0%
0%
0%
0%
0%
0%
2%
5%
3%
6%
6%
0%
0%
0%
2%
50%
4%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
11%
5%
0%
39%
64%
91%
100%
100%
13%
32%
52%
24%
0%
7%
7%
6%
5%
6%
7%
100%
100%
12%
60%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
74%
100%
100%
100%
82%
65%
37%
100%
100%
17%
45%
100%
100%
100%
21%
100%
80%
100%
100%
100%
100%
99%
98%
98%
99%
100%
PRESSURE
hPa · trend
995
995997997997998999998997997997995992991991990990990992993993
TemperatureWind / GustsPrecipitationCloud coverPressure
Nowscroll →
FISH INDEX
75
Temperature
Warm
Wind
Calm
Pressure
Rising — Slow
Moon Phase
Good
DAYLIGHT
SUNRISE
05:32 AM
SUNSET
08:37 PM
15H 5M OF DAYLIGHT
MOON PHASE
Last Quarter
64% illuminated

Station Location

41.5561, -90.1853
Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-06 00:00 UTC
Site #05446500·USGS

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