Water Temperature of the Mississippi River in Rock Island, IL

Current Water Temperature

32.0°F

Measurement Time: Sunday, December 14, 2025, 9:00 AM CST

Temperature Locations

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Local Points of Interest

Davenport, IA; Arsenal Island

Mississippi River

Station Name: Rock Island L&D 15
Data Source: USGS

Elevation Above Sea Level: 555 feet

Nearest Address:
Rodman Avenue
Rock Island, IL 52801
Rock Island County

GPS Coordinates: 41.5181, -90.5647

Nearby Water Temperatures

Mississippi River, Le Claire, IA (9.3 mi)
Mississippi River, Illinois City, IL (23.9 mi)
Mississippi River, Camanche, IA (24.3 mi)
Beaver Slough, Clinton, IA (28.8 mi)
Mississippi River, Fulton, IL (33.4 mi)
Mississippi River, Fulton, IL (33.7 mi)
Mississippi River, New Boston, IL (34.1 mi)
North Fork Maquoketa River, Maquoketa, IA (45.4 mi)
Mississippi River, Gladstone, IL (50 mi)
Mississippi River, Bellevue, IA (51.8 mi)
Illinois River, Henry, IL (68.8 mi)
Morgan Creek, Cedar Rapids, IA (69.7 mi)
Mississippi River, Dubuque, IA (70.7 mi)
Cedar River, Palo, IA (73.5 mi)
Illinois River, Peoria, IL (78.3 mi)

Weather for Rock Island, Illinois

Current Weather

78.1°F
Sunny
Sunny
83.6°F
80°F
85%
NNW 2.5 mph
3.3 mph
75.7°F
72.2°F
0 in
0%
9 mi
1021 mbar
1.4

Five Day Weather Forecast

Sunny
Wed
H: 103°F
L: 69°F
Sunny
Thu
H: 87°F
L: 71°F
Sunny
Fri
H: 84°F
L: 72°F
Sunny
Sat
H: 90°F
L: 71°F
Partly Cloudy
Sun
H: 90°F
L: 68°F

Air Quality

AQI: 1 - Good
PM2.5: 5.2 μg/m3
PM10: 5.4 μg/m3
Carbon Monoxide: 160 μg/m3
Nitrogen Dioxide: 19.8 μg/m3
Sulphur Dioxide: 1.4 μg/m3
Ozone: 65 μg/m3

Astronomical

Sunrise: 5:41 AM
Sun Transit: 1:08 PM
Sunset: 8:35 PM
Daylight: 14 hrs 53 mins
Moonrise: 6:59 AM
Moon Transit: 2:30 PM
Moonset: 9:48 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

1:27 AM - 3:57 AM
2:00 PM - 4:30 PM

Minor Periods

9:18 PM - 10:48 PM
6:29 AM - 7:59 AM

Action Rating: 3 out of 5

Flood Watch issued July 14 at 9:28PM CDT until July 17 at 6:00PM CDT by NWS Quad Cities IA IL

Effective: Tue July 14, 2026, 9:28 PM
Expires: Wed July 15, 2026, 9:30 PM

...The Flood Watch is extended for the following rivers in Iowa... Cedar River near Conesville affecting Louisa and Muscatine Counties. * WHAT...Flooding is possible. * WHERE...Cedar River near Conesville. * WHEN...From Wednesday evening to Friday evening. * IMPACTS...At 13.5 feet, water affects yards and access roads of residences along Iowa Highway 22. Water affects the lowest sections of campgrounds just north of I-80 along the river and the lowest sections of Jack Shuger Memorial Park in Moscow. Water is also on 152nd Street north of County Road F70. * ADDITIONAL DETAILS... - At 9:00 PM CDT Tuesday the stage was 12.3 feet. - Forecast...Flood stage may be reached late tomorrow evening. - Flood stage is 13.0 feet.

If you are in the watch area, remain alert to possible flooding. The next statement will be issued by Wednesday evening at 930 PM CDT.
Wednesday, July 15, 2026

Weather Forecast

Sunny
102.7°F
68.5°F
83.4°F
70%
0 in
6%
0%
4.9 mph
10


Air Quality

AQI: 1 - Good
PM2.5: 6.33 μg/m3
PM10: 6.85 μg/m3
Carbon Monoxide: 154.63 μg/m3
Nitrogen Dioxide: 13.69 μg/m3
Sulphur Dioxide: 1.5 μg/m3
Ozone: 97.25 μg/m3

Astronomical

Sunrise: 5:41 AM
Sun Transit: 1:08 PM
Sunset: 8:35 PM
Daylight: 14 hrs 53 mins
Moonrise: 6:59 AM
Moon Transit: 2:30 PM
Moonset: 9:48 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

1:27 AM - 3:57 AM
2:00 PM - 4:30 PM

Minor Periods

9:18 PM - 10:48 PM
6:29 AM - 7:59 AM

Action Rating: 3 out of 5

Thursday, July 16, 2026

Weather Forecast

Sunny
87.2°F
70.8°F
79°F
80%
0.33 in
75%
0%
5.6 mph
9.7


Air Quality

AQI: 1 - Good
PM2.5: 6.06 μg/m3
PM10: 6.83 μg/m3
Carbon Monoxide: 148.04 μg/m3
Nitrogen Dioxide: 7.29 μg/m3
Sulphur Dioxide: 1.47 μg/m3
Ozone: 107 μg/m3

Astronomical

Sunrise: 5:42 AM
Sun Transit: 1:08 PM
Sunset: 8:34 PM
Daylight: 14 hrs 52 mins
Moonrise: 8:18 AM
Moon Transit: 3:23 PM
Moonset: 10:15 PM
Moon Phase: New
Moon Illumination: 2.4%

Best Times for Fishing or Hunting

Major Periods

2:23 AM - 4:53 AM
2:53 PM - 5:23 PM

Minor Periods

9:45 PM - 11:15 PM
7:48 AM - 9:18 AM

Action Rating: 3 out of 5

Friday, July 17, 2026

Weather Forecast

Sunny
84.2°F
71.6°F
77.6°F
86%
0.34 in
79%
0%
7.6 mph
9.2


Air Quality

AQI: 1 - Good
PM2.5: 4.18 μg/m3
PM10: 4.43 μg/m3
Carbon Monoxide: 142.54 μg/m3
Nitrogen Dioxide: 5.73 μg/m3
Sulphur Dioxide: 1.28 μg/m3
Ozone: 103.88 μg/m3

Astronomical

Sunrise: 5:43 AM
Sun Transit: 1:08 PM
Sunset: 8:34 PM
Daylight: 14 hrs 50 mins
Moonrise: 9:32 AM
Moon Transit: 4:12 PM
Moonset: 10:39 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.0%

Best Times for Fishing or Hunting

Major Periods

3:13 AM - 5:43 AM
3:42 PM - 6:12 PM

Minor Periods

10:09 PM - 11:39 PM
9:02 AM - 10:32 AM

Action Rating: 3 out of 5

Saturday, July 18, 2026

Weather Forecast

Sunny
89.5°F
70.6°F
79.7°F
83%
0 in
11%
0%
14.3 mph
9.3


Air Quality

AQI: 1 - Good
PM2.5: 2.88 μg/m3
PM10: 3.17 μg/m3
Carbon Monoxide: 125.73 μg/m3
Nitrogen Dioxide: 4.65 μg/m3
Sulphur Dioxide: 0.74 μg/m3
Ozone: 94.25 μg/m3

Astronomical

Sunrise: 5:44 AM
Sun Transit: 1:08 PM
Sunset: 8:33 PM
Daylight: 14 hrs 49 mins
Moonrise: 10:43 AM
Moon Transit: 4:57 PM
Moonset: 11:00 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

4:00 AM - 6:30 AM
4:27 PM - 6:57 PM

Minor Periods

12:00 AM - 12:00 AM
10:13 AM - 11:43 AM

Action Rating: 2 out of 5

Sunday, July 19, 2026

Weather Forecast

Partly Cloudy
89.6°F
68.4°F
79.4°F
81%
0.11 in
63%
0%
6.9 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 2.09 μg/m3
PM10: 2.1 μg/m3
Carbon Monoxide: 210.88 μg/m3
Nitrogen Dioxide: 5.85 μg/m3
Sulphur Dioxide: 0.54 μg/m3
Ozone: 66.63 μg/m3

Astronomical

Sunrise: 5:45 AM
Sun Transit: 1:08 PM
Sunset: 8:32 PM
Daylight: 14 hrs 47 mins
Moonrise: 11:51 AM
Moon Transit: 5:41 PM
Moonset: 12:00 AM
Moon Phase: Waxing Crescent
Moon Illumination: 22.6%

Best Times for Fishing or Hunting

Major Periods

4:44 AM - 7:14 AM
5:11 PM - 7:41 PM

Minor Periods

11:21 AM - 12:51 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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