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
78.5°F
77.1°F
82%
E 7.2 mph
14.1 mph
73.4°F
67°F
0 in
100%
9 mi
1012 mbar
0

Five Day Weather Forecast

Overcast
Sat
H: 80°F
L: 62°F
Sunny
Sun
H: 88°F
L: 67°F
Sunny
Mon
H: 89°F
L: 72°F
Sunny
Tue
H: 90°F
L: 73°F
Sunny
Wed
H: 90°F
L: 72°F

Air Quality

AQI: 1 - Good
PM2.5: 9.3 μg/m3
PM10: 9.6 μg/m3
Carbon Monoxide: 145 μg/m3
Nitrogen Dioxide: 6.4 μg/m3
Sulphur Dioxide: 1.9 μg/m3
Ozone: 79 μg/m3

Astronomical

Sunrise: 5:30 AM
Sun Transit: 1:05 PM
Sunset: 8:41 PM
Daylight: 15 hrs 10 mins
Moonrise: 7:19 PM
Moon Transit: 11:37 PM
Moonset: 3:11 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 95.2%

Best Times for Fishing or Hunting

Major Periods

10:37 AM - 1:07 PM
12:00 AM - 12:00 AM

Minor Periods

6:49 PM - 8:19 PM
2:41 AM - 4:11 AM

Action Rating: 3 out of 5

Heat Advisory issued June 27 at 11:14AM CDT until June 28 at 7:00PM CDT by NWS Lincoln IL

Effective: Sat June 27, 2026, 11:14 AM
Expires: Sun June 28, 2026, 4:00 AM

* WHAT...Heat index values up to 105 expected. * WHERE...Portions of central, east central, southeast, and west central Illinois. * WHEN...From 1 PM to 7 PM CDT Sunday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Saturday, June 27, 2026

Weather Forecast

Overcast
79.9°F
62.1°F
70.7°F
78%
0 in
15%
0%
11.4 mph
6.5


Air Quality

AQI: 1 - Good
PM2.5: 9.04 μg/m3
PM10: 9.26 μg/m3
Carbon Monoxide: 140.88 μg/m3
Nitrogen Dioxide: 6.5 μg/m3
Sulphur Dioxide: 1.83 μg/m3
Ozone: 73.67 μg/m3

Astronomical

Sunrise: 5:30 AM
Sun Transit: 1:05 PM
Sunset: 8:41 PM
Daylight: 15 hrs 10 mins
Moonrise: 7:19 PM
Moon Transit: 11:37 PM
Moonset: 3:11 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 95.2%

Best Times for Fishing or Hunting

Major Periods

10:37 AM - 1:07 PM
12:00 AM - 12:00 AM

Minor Periods

6:49 PM - 8:19 PM
2:41 AM - 4:11 AM

Action Rating: 3 out of 5

Sunday, June 28, 2026

Weather Forecast

Sunny
87.8°F
66.9°F
77.2°F
86%
0 in
25%
0%
16.3 mph
8.8


Air Quality

AQI: 1 - Good
PM2.5: 5.6 μg/m3
PM10: 5.87 μg/m3
Carbon Monoxide: 137.29 μg/m3
Nitrogen Dioxide: 5.9 μg/m3
Sulphur Dioxide: 1.95 μg/m3
Ozone: 74.83 μg/m3

Astronomical

Sunrise: 5:31 AM
Sun Transit: 1:05 PM
Sunset: 8:41 PM
Daylight: 15 hrs 10 mins
Moonrise: 8:13 PM
Moon Transit: 12:00 AM
Moonset: 3:54 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:28 AM - 1:58 PM

Minor Periods

7:43 PM - 9:13 PM
3:24 AM - 4:54 AM

Action Rating: 2 out of 5

Monday, June 29, 2026

Weather Forecast

Sunny
89.1°F
71.5°F
80.7°F
81%
0 in
10%
0%
16.6 mph
10.2


Air Quality

AQI: 1 - Good
PM2.5: 6.39 μg/m3
PM10: 7.28 μg/m3
Carbon Monoxide: 115.13 μg/m3
Nitrogen Dioxide: 3.27 μg/m3
Sulphur Dioxide: 1.3 μg/m3
Ozone: 71.29 μg/m3

Astronomical

Sunrise: 5:31 AM
Sun Transit: 1:05 PM
Sunset: 8:41 PM
Daylight: 15 hrs 10 mins
Moonrise: 9:00 PM
Moon Transit: 12:28 AM
Moonset: 4:46 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:19 AM - 2:49 PM

Minor Periods

8:30 PM - 10:00 PM
4:16 AM - 5:46 AM

Action Rating: 5 out of 5

Tuesday, June 30, 2026

Weather Forecast

Sunny
89.9°F
73.4°F
81.6°F
77%
0 in
8%
0%
16.8 mph
10.1


Air Quality

AQI: 1 - Good
PM2.5: 14.26 μg/m3
PM10: 21.25 μg/m3
Carbon Monoxide: 115.92 μg/m3
Nitrogen Dioxide: 3.12 μg/m3
Sulphur Dioxide: 1.06 μg/m3
Ozone: 72.79 μg/m3

Astronomical

Sunrise: 5:31 AM
Sun Transit: 1:06 PM
Sunset: 8:40 PM
Daylight: 15 hrs 9 mins
Moonrise: 9:39 PM
Moon Transit: 1:20 AM
Moonset: 5:43 AM
Moon Phase: Full
Moon Illumination: 98.6%

Best Times for Fishing or Hunting

Major Periods

12:50 AM - 3:20 AM
1:10 PM - 3:40 PM

Minor Periods

9:09 PM - 10:39 PM
5:13 AM - 6:43 AM

Action Rating: 5 out of 5

Wednesday, July 1, 2026

Weather Forecast

Sunny
89.7°F
71.9°F
81.6°F
78%
0 in
8%
0%
12.3 mph
10.2


Air Quality

AQI: 1 - Good
PM2.5: 10.39 μg/m3
PM10: 13.9 μg/m3
Carbon Monoxide: 131.85 μg/m3
Nitrogen Dioxide: 3.43 μg/m3
Sulphur Dioxide: 0.96 μg/m3
Ozone: 75.54 μg/m3

Astronomical

Sunrise: 5:32 AM
Sun Transit: 1:06 PM
Sunset: 8:40 PM
Daylight: 15 hrs 8 mins
Moonrise: 10:11 PM
Moon Transit: 2:09 AM
Moonset: 6:46 AM
Moon Phase: Full
Moon Illumination: 94.7%

Best Times for Fishing or Hunting

Major Periods

1:39 AM - 4:09 AM
1:59 PM - 4:29 PM

Minor Periods

9:41 PM - 11:11 PM
6:16 AM - 7:46 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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