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

70°F
Clear
Clear
70°F
69.4°F
87%
NE 5.1 mph
10.8 mph
69.4°F
61.6°F
0 in
0%
9 mi
1020 mbar
0

Five Day Weather Forecast

Sunny
Sun
H: 92°F
L: 63°F
Sunny
Mon
H: 85°F
L: 65°F
Sunny
Tue
H: 88°F
L: 69°F
Sunny
Wed
H: 89°F
L: 70°F
Sunny
Thu
H: 89°F
L: 72°F

Air Quality

AQI: 1 - Good
PM2.5: 3.3 μg/m3
PM10: 3.6 μg/m3
Carbon Monoxide: 149 μg/m3
Nitrogen Dioxide: 16.4 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 43 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 1:08 PM
Sunset: 8:37 PM
Daylight: 14 hrs 58 mins
Moonrise: 3:08 AM
Moon Transit: 11:21 AM
Moonset: 7:34 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:51 AM - 1:21 PM

Minor Periods

7:04 PM - 8:34 PM
2:38 AM - 4:08 AM

Action Rating: 3 out of 5

Flood Warning issued July 11 at 10:38AM CDT until July 12 at 6:00AM CDT by NWS Quad Cities IA IL

Effective: Sat July 11, 2026, 10:38 AM
Expires: Sun July 12, 2026, 6:00 AM

...The Flood Warning continues for the following rivers in Iowa... Wapsipinicon River near De Witt 4S affecting Scott and Clinton Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Wapsipinicon River near De Witt 4S. * WHEN...Until tomorrow morning. * IMPACTS...At 11.5 feet, Water affects homes along old U.S. Highway 61. * ADDITIONAL DETAILS... - At 10:30 AM CDT Saturday the stage was 11.4 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 10:30 AM CDT Saturday was 12.3 feet. - Forecast...The river is expected to fall below flood stage late this evening and continue falling to 9.2 feet Saturday, July 18. - Flood stage is 11.0 feet.

Motorists should not attempt to drive cars through flooded areas. The next statement will be issued by Sunday morning at 600 AM CDT.


Flood Watch issued July 11 at 10:39AM CDT until July 17 at 12:00AM CDT by NWS Quad Cities IA IL

Effective: Sat July 11, 2026, 10:39 AM
Expires: Sun July 12, 2026, 10:45 AM

...The National Weather Service in Quad Cities IA IL has issued a Flood Watch 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 Tuesday morning to early Friday morning. * IMPACTS...At 14.0 feet, Water affects residences along County Road F70. * ADDITIONAL DETAILS... - At 10:00 AM CDT Saturday the stage was 11.2 feet. - Forecast...Flood stage may be reached Tuesday morning. - Flood stage is 13.0 feet. - http://www.weather.gov/safety/flood

If you are in the watch area, remain alert to possible flooding. The next statement will be issued by Sunday morning at 1045 AM CDT.


Flood Watch issued July 11 at 8:08PM CDT until July 17 at 5:24AM CDT by NWS Quad Cities IA IL

Effective: Sat July 11, 2026, 8:08 PM
Expires: Sun July 12, 2026, 8:15 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 Tuesday afternoon to early Friday morning. * 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. At 14.0 feet, Water affects residences along County Road F70. * ADDITIONAL DETAILS... - At 6:00 PM CDT Saturday the stage was 11.0 feet. - Forecast...Flood stage may be reached Tuesday afternoon. - Flood stage is 13.0 feet. - http://www.weather.gov/safety/flood

If you are in the watch area, remain alert to possible flooding. The next statement will be issued by Sunday evening at 815 PM CDT.
Sunday, July 12, 2026

Weather Forecast

Sunny
91.9°F
63.1°F
75.1°F
70%
0 in
5%
0%
6.7 mph
9.7


Air Quality

AQI: 1 - Good
PM2.5: 6.15 μg/m3
PM10: 6.68 μg/m3
Carbon Monoxide: 143.67 μg/m3
Nitrogen Dioxide: 12.03 μg/m3
Sulphur Dioxide: 1.22 μg/m3
Ozone: 76.33 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 1:08 PM
Sunset: 8:37 PM
Daylight: 14 hrs 58 mins
Moonrise: 3:08 AM
Moon Transit: 11:21 AM
Moonset: 7:34 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:51 AM - 1:21 PM

Minor Periods

7:04 PM - 8:34 PM
2:38 AM - 4:08 AM

Action Rating: 3 out of 5

Monday, July 13, 2026

Weather Forecast

Sunny
85.2°F
65.2°F
75.5°F
78%
0 in
8%
0%
5.6 mph
9.8


Air Quality

AQI: 1 - Good
PM2.5: 12.3 μg/m3
PM10: 13.2 μg/m3
Carbon Monoxide: 157.88 μg/m3
Nitrogen Dioxide: 25.63 μg/m3
Sulphur Dioxide: 1.37 μg/m3
Ozone: 76.17 μg/m3

Astronomical

Sunrise: 5:40 AM
Sun Transit: 1:08 PM
Sunset: 8:36 PM
Daylight: 14 hrs 56 mins
Moonrise: 4:19 AM
Moon Transit: 12:28 AM
Moonset: 8:31 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:58 AM - 2:28 PM

Minor Periods

8:01 PM - 9:31 PM
3:49 AM - 5:19 AM

Action Rating: 4 out of 5

Tuesday, July 14, 2026

Weather Forecast

Sunny
87.7°F
68.5°F
78.1°F
79%
0 in
9%
0%
5.4 mph
10.2


Air Quality

AQI: 1 - Good
PM2.5: 7.72 μg/m3
PM10: 8.47 μg/m3
Carbon Monoxide: 145.46 μg/m3
Nitrogen Dioxide: 19.2 μg/m3
Sulphur Dioxide: 0.96 μg/m3
Ozone: 77.46 μg/m3

Astronomical

Sunrise: 5:41 AM
Sun Transit: 1:08 PM
Sunset: 8:35 PM
Daylight: 14 hrs 55 mins
Moonrise: 5:37 AM
Moon Transit: 1:32 PM
Moonset: 9:14 PM
Moon Phase: New
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

12:26 AM - 2:56 AM
1:02 PM - 3:32 PM

Minor Periods

8:44 PM - 10:14 PM
5:07 AM - 6:37 AM

Action Rating: 4 out of 5

Wednesday, July 15, 2026

Weather Forecast

Sunny
88.9°F
70.2°F
79.6°F
79%
0 in
9%
0%
4.9 mph
9.8


Air Quality

AQI: 1 - Good
PM2.5: 6.09 μg/m3
PM10: 6.64 μg/m3
Carbon Monoxide: 162.91 μg/m3
Nitrogen Dioxide: 14.51 μg/m3
Sulphur Dioxide: 1.06 μg/m3
Ozone: 87.17 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
88.6°F
71.5°F
80°F
80%
0.08 in
58%
0%
6 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 7.91 μg/m3
PM10: 8.33 μg/m3
Carbon Monoxide: 255.63 μg/m3
Nitrogen Dioxide: 30 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 36.25 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

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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