Waterlands
Illinois River
USGS · 05543500
ILLINOIS RIVER
USGS · 05543500LIVE

ILLINOIS RIVER AT MARSEILLES, IL

MARSEILLES, IL41.3270°N, -88.7171°W Updated 13 hr ago
FLOW RATE
13,604cfs
AIR TEMP
81°F
WIND
12mph S
FISH INDEX
63SCORE / 100
GOOD · 3 OF 5
Flow Rate Historical Avg
MEDIAN FLOW RATE · 30 DAY
13,604cfs 56.1% vs avg
Optimal band: 17,264–23,357 cfs
PERIOD HIGH
42,172cfs
PERIOD LOW
4,426cfs
RUNNABLE
23%
last 30 day in band
Precipitation History
Your History · ILLINOIS RIVER AT MARSEILLES, IL

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Weather Conditions
WEATHER CONDITIONS
TODAY
92°
76°
TUE
95°
77°
WED
91°
75°
THU
89°
75°
FRI
88°
73°
SAT
90°
73°
SUN
88°
70°
TIME
MON
1
NOW
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
8
pm
9
pm
10
pm
11
pm
SAT
12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
TEMP
hourly forecast
90°
mild
90°
91°
92°
92°
92°
91°
89°
86°
84°
82°
82°
81°
80°
79°
79°
78°
77°
77°
80°
83°
86°
88°
90°
92°
93°
95°
95°
94°
94°
93°
90°
87°
83°
81°
80°
78°
77°
76°
76°
75°
75°
75°
77°
80°
83°
85°
88°
89°
90°
91°
91°
90°
89°
88°
86°
82°
80°
79°
79°
79°
78°
78°
77°
77°
75°
75°
77°
80°
82°
84°
86°
87°
87°
88°
89°
89°
87°
85°
83°
81°
79°
78°
77°
76°
76°
75°
75°
74°
73°
73°
75°
78°
80°
83°
86°
87°
87°
87°
88°
86°
86°
85°
83°
81°
79°
78°
77°
76°
76°
74°
73°
73°
73°
73°
74°
WIND
mph · gust · dir
13mph SSW
G 18 mph
13
G18
SSW
14
G21
S
15
G22
S
14
G21
S
14
G21
S
13
G23
SSW
11
G24
S
8
G14
S
7
G15
S
9
G17
S
10
G19
S
11
G20
S
10
G19
SSW
10
G19
SSW
8
G17
SSW
8
G16
SSW
8
G17
SW
7
G16
SW
10
G26
SW
12
G26
SW
13
G27
SW
13
G23
SW
13
G22
SW
14
G20
SW
14
G20
SW
14
G20
SSW
15
G22
SSW
16
G25
SSW
16
G26
SSW
14
G27
SSW
11
G25
SSW
8
G16
SSW
6
G16
SW
6
G16
SSW
8
G20
SSW
8
G20
SW
7
G19
SW
7
G18
SW
7
G15
SW
7
G14
SW
7
G16
SSW
6
G11
SSW
6
G14
SSW
8
G14
SSW
9
G15
SSW
10
G15
SSW
10
G15
SSW
10
G17
SSW
11
G18
SW
12
G19
SW
12
G20
SSW
12
G20
SSW
12
G21
SSW
13
G22
SSW
11
G21
SSW
8
G22
S
8
G25
S
9
G28
S
10
G30
S
10
G33
SSW
8
G34
SSW
8
G33
SSW
7
G30
SSW
8
G28
SSW
8
G25
SSW
8
G22
SW
9
G28
SSW
10
G25
SW
10
G17
SW
10
G15
SW
12
SW
11
SW
11
G12
SW
10
G14
SW
10
G13
SW
10
G11
SW
9
G13
SW
8
G14
SW
7
G19
SSW
7
G20
SSW
7
G20
SSW
8
G16
SSW
8
G11
S
8
G11
SSW
7
G12
SSW
7
G17
SSW
7
G12
SSW
6
G9
SSW
7
G14
SSW
7
G12
SSW
7
G15
SSW
9
G13
SSW
10
G13
SSW
10
G14
SSW
11
G15
SW
12
G15
SW
11
G13
SW
10
G14
SW
9
G13
SW
7
G13
SW
5
G13
SW
7
G15
SSW
7
G20
SSW
7
G22
SW
8
G23
SSW
8
G24
SSW
7
G24
SSW
8
G22
SSW
9
G20
SSW
8
G18
SSW
7
G15
SSW
7
G13
SSW
6
G12
SSW
5
G12
SW
5
G13
SW
PRECIP
chance %
1%
1%
0%
1%
1%
1%
1%
1%
1%
0%
0%
0%
0%
0%
0%
0%
1%
1%
1%
1%
1%
1%
1%
4%
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%
3%
3%
3%
3%
3%
3%
12%
12%
12%
12%
12%
12%
8%
8%
8%
8%
8%
8%
8%
8%
8%
8%
8%
8%
34%
34%
34%
34%
34%
34%
37%
37%
37%
37%
37%
37%
35%
35%
35%
35%
35%
35%
30%
30%
30%
30%
30%
30%
33%
33%
33%
33%
33%
33%
CLOUDS
cover %
22%
few
22%
80%
9%
17%
100%
100%
100%
97%
2%
6%
0%
100%
66%
100%
17%
22%
98%
100%
100%
86%
100%
98%
71%
4%
0%
0%
24%
0%
0%
0%
6%
2%
0%
0%
0%
46%
0%
0%
0%
0%
0%
0%
0%
0%
0%
69%
0%
5%
5%
6%
10%
6%
64%
5%
0%
0%
0%
0%
0%
0%
0%
5%
0%
5%
0%
6%
36%
27%
100%
15%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
97%
40%
6%
100%
100%
39%
12%
10%
11%
63%
11%
100%
100%
100%
56%
19%
40%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
11%
2%
1%
2%
2%
4%
5%
PRESSURE
hPa · trend
994
994993994996995994996998998996997998999998999999999997997997
TemperatureWind / GustsPrecipitationCloud coverPressure
Nowscroll →
FISH INDEX
63
Temperature
Too Hot
Wind
Moderate
Pressure
Stable
Moon Phase
Peak Activity
DAYLIGHT
SUNRISE
05:24 AM
SUNSET
08:32 PM
15H 8M OF DAYLIGHT7H 16M REMAINING
MOON PHASE
Full Moon
100% illuminated
PEAK ACTIVITY

Station Location

41.3270, -88.7171
Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-06-29 13:16 UTC
Site #05543500·USGS

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