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

75°F
Overcast
Overcast
79.4°F
75.8°F
82%
W 10.7 mph
22.5 mph
70.9°F
68.6°F
0.01 in
0%
9 mi
1007 mbar
0

Five Day Weather Forecast

Sunny
Tue
H: 83°F
L: 61°F
Sunny
Wed
H: 70°F
L: 52°F
Sunny
Thu
H: 74°F
L: 52°F
Patchy rain nearby
Fri
H: 74°F
L: 60°F
Mist
Sat
H: 77°F
L: 57°F

Air Quality

AQI: 1 - Good
PM2.5: 3.5 μg/m3
PM10: 4.1 μg/m3
Carbon Monoxide: 116 μg/m3
Nitrogen Dioxide: 8.2 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 62 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:08 PM
Sunset: 8:31 PM
Daylight: 14 hrs 44 mins
Moonrise: 2:02 PM
Moon Transit: 7:08 PM
Moonset: 12:43 AM
Moon Phase: First Quarter
Moon Illumination: 43.7%

Best Times for Fishing or Hunting

Major Periods

6:11 AM - 8:41 AM
6:38 PM - 9:08 PM

Minor Periods

1:32 PM - 3:02 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Severe Thunderstorm Watch issued July 20 at 5:59PM CDT until July 20 at 11:00PM CDT by NWS Quad Cities IA IL

Effective: Mon July 20, 2026, 5:59 PM
Expires: Mon July 20, 2026, 11:00 PM

SEVERE THUNDERSTORM WATCH 504 REMAINS VALID UNTIL 11 PM CDT THIS EVENING FOR THE FOLLOWING AREAS IN ILLINOIS THIS WATCH INCLUDES 10 COUNTIES IN NORTH CENTRAL ILLINOIS BUREAU PUTNAM IN NORTHWEST ILLINOIS HENRY IL MERCER ROCK ISLAND WHITESIDE IN WEST CENTRAL ILLINOIS HANCOCK HENDERSON MCDONOUGH WARREN IN IOWA THIS WATCH INCLUDES 2 COUNTIES IN EAST CENTRAL IOWA CLINTON SCOTT IN MISSOURI THIS WATCH INCLUDES 2 COUNTIES IN NORTHEAST MISSOURI CLARK SCOTLAND THIS INCLUDES THE CITIES OF ALEDO, BETTENDORF, CARTHAGE, CLINTON, CREDIT ISLAND, DAVENPORT, GENESEO, HENNEPIN, KAHOKA, MACOMB, MEMPHIS, MOLINE, MONMOUTH, OQUAWKA, PRINCETON, ROCK ISLAND, AND STERLING.


Severe Thunderstorm Watch issued July 20 at 5:39PM CDT until July 20 at 11:00PM CDT by NWS Quad Cities IA IL

Effective: Mon July 20, 2026, 5:39 PM
Expires: Mon July 20, 2026, 11:00 PM

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 504 IN EFFECT UNTIL 11 PM CDT THIS EVENING FOR THE FOLLOWING AREAS IN ILLINOIS THIS WATCH INCLUDES 10 COUNTIES IN NORTH CENTRAL ILLINOIS BUREAU PUTNAM IN NORTHWEST ILLINOIS HENRY IL MERCER ROCK ISLAND WHITESIDE IN WEST CENTRAL ILLINOIS HANCOCK HENDERSON MCDONOUGH WARREN IN IOWA THIS WATCH INCLUDES 2 COUNTIES IN EAST CENTRAL IOWA CLINTON SCOTT IN MISSOURI THIS WATCH INCLUDES 2 COUNTIES IN NORTHEAST MISSOURI CLARK SCOTLAND THIS INCLUDES THE CITIES OF ALEDO, BETTENDORF, CARTHAGE, CLINTON, CREDIT ISLAND, DAVENPORT, GENESEO, HENNEPIN, KAHOKA, MACOMB, MEMPHIS, MOLINE, MONMOUTH, OQUAWKA, PRINCETON, ROCK ISLAND, AND STERLING.
Tuesday, July 21, 2026

Weather Forecast

Sunny
83.3°F
61.4°F
73.3°F
79%
0.01 in
36%
0%
18.3 mph
8.9


Air Quality

AQI: 1 - Good
PM2.5: 2.79 μg/m3
PM10: 2.98 μg/m3
Carbon Monoxide: 130.08 μg/m3
Nitrogen Dioxide: 4.08 μg/m3
Sulphur Dioxide: 0.56 μg/m3
Ozone: 74.83 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:08 PM
Sunset: 8:31 PM
Daylight: 14 hrs 44 mins
Moonrise: 2:02 PM
Moon Transit: 7:08 PM
Moonset: 12:43 AM
Moon Phase: First Quarter
Moon Illumination: 43.7%

Best Times for Fishing or Hunting

Major Periods

6:11 AM - 8:41 AM
6:38 PM - 9:08 PM

Minor Periods

1:32 PM - 3:02 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, July 22, 2026

Weather Forecast

Sunny
70.4°F
51.6°F
61.8°F
72%
0 in
9%
0%
8.5 mph
9


Air Quality

AQI: 1 - Good
PM2.5: 2.03 μg/m3
PM10: 2.09 μg/m3
Carbon Monoxide: 132.38 μg/m3
Nitrogen Dioxide: 4.37 μg/m3
Sulphur Dioxide: 0.48 μg/m3
Ozone: 69.21 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:08 PM
Sunset: 8:30 PM
Daylight: 14 hrs 42 mins
Moonrise: 3:07 PM
Moon Transit: 7:54 PM
Moonset: 12:07 AM
Moon Phase: First Quarter
Moon Illumination: 55.0%

Best Times for Fishing or Hunting

Major Periods

6:56 AM - 9:26 AM
7:24 PM - 9:54 PM

Minor Periods

2:37 PM - 4:07 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Thursday, July 23, 2026

Weather Forecast

Sunny
74.1°F
52.3°F
64.1°F
69%
0.01 in
19%
0%
6 mph
9.3


Air Quality

AQI: 1 - Good
PM2.5: 4.07 μg/m3
PM10: 4.19 μg/m3
Carbon Monoxide: 128.75 μg/m3
Nitrogen Dioxide: 13.17 μg/m3
Sulphur Dioxide: 0.66 μg/m3
Ozone: 60.71 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 1:08 PM
Sunset: 8:29 PM
Daylight: 14 hrs 40 mins
Moonrise: 4:11 PM
Moon Transit: 8:42 PM
Moonset: 12:36 AM
Moon Phase: First Quarter
Moon Illumination: 66.1%

Best Times for Fishing or Hunting

Major Periods

7:43 AM - 10:13 AM
8:12 PM - 10:42 PM

Minor Periods

3:41 PM - 5:11 PM
12:06 AM - 1:36 AM

Action Rating: 3 out of 5

Friday, July 24, 2026

Weather Forecast

Patchy rain nearby
73.7°F
60.4°F
65.3°F
80%
0.02 in
42%
0%
9.8 mph
1.9


Air Quality

AQI: 1 - Good
PM2.5: 3.28 μg/m3
PM10: 3.4 μg/m3
Carbon Monoxide: 137.33 μg/m3
Nitrogen Dioxide: 9.33 μg/m3
Sulphur Dioxide: 0.98 μg/m3
Ozone: 77.08 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 1:08 PM
Sunset: 8:28 PM
Daylight: 14 hrs 39 mins
Moonrise: 5:12 PM
Moon Transit: 9:32 PM
Moonset: 1:09 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.3%

Best Times for Fishing or Hunting

Major Periods

8:32 AM - 11:02 AM
9:02 PM - 11:32 PM

Minor Periods

4:42 PM - 6:12 PM
12:39 AM - 2:09 AM

Action Rating: 2 out of 5

Saturday, July 25, 2026

Weather Forecast

Mist
76.5°F
56.8°F
67.3°F
87%
0 in
24%
0%
8.1 mph
5


Air Quality

AQI: 1 - Good
PM2.5: 4.56 μg/m3
PM10: 4.64 μg/m3
Carbon Monoxide: 211.25 μg/m3
Nitrogen Dioxide: 17.85 μg/m3
Sulphur Dioxide: 1.31 μg/m3
Ozone: 48.63 μg/m3

Astronomical

Sunrise: 5:50 AM
Sun Transit: 1:08 PM
Sunset: 8:27 PM
Daylight: 14 hrs 37 mins
Moonrise: 6:08 PM
Moon Transit: 10:23 PM
Moonset: 1:50 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.2%

Best Times for Fishing or Hunting

Major Periods

9:23 AM - 11:53 AM
12:00 AM - 12:00 AM

Minor Periods

5:38 PM - 7:08 PM
1:20 AM - 2:50 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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