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

77.2°F
Sunny
Sunny
78.4°F
82.4°F
56%
S 7.2 mph
9.2 mph
81.7°F
59.3°F
0 in
25%
9 mi
1018 mbar
1.3

Five Day Weather Forecast

Sunny
Fri
H: 82°F
L: 60°F
Sunny
Sat
H: 86°F
L: 67°F
Sunny
Sun
H: 92°F
L: 72°F
Sunny
Mon
H: 95°F
L: 76°F
Sunny
Tue
H: 92°F
L: 72°F

Air Quality

AQI: 1 - Good
PM2.5: 3.7 μg/m3
PM10: 3.9 μg/m3
Carbon Monoxide: 138 μg/m3
Nitrogen Dioxide: 1.7 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 115 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

Extreme Heat Watch issued July 24 at 1:10PM CDT until July 27 at 10:00PM CDT by NWS Quad Cities IA IL

Effective: Fri July 24, 2026, 1:10 PM
Expires: Fri July 24, 2026, 11:00 PM

* WHAT...Dangerously hot conditions with heat index values of 105 to 110 possible. Little relief will be seen Sunday night with low temperatures of 75 to 80. * WHERE...Bureau, Putnam, Henry IL, and Whiteside Counties. * WHEN...From Sunday afternoon through Monday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.


Heat Advisory issued July 24 at 1:31PM CDT until July 27 at 9:00PM CDT by NWS Lincoln IL

Effective: Fri July 24, 2026, 1:31 PM
Expires: Sat July 25, 2026, 4:00 AM

* WHAT...Heat index values 105 to 110 expected. * WHERE...West of the I-57 corridor. * WHEN...From noon Sunday to 9 PM CDT Monday. * 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.
Friday, July 24, 2026

Weather Forecast

Sunny
82.4°F
60.4°F
69.7°F
67%
0 in
17%
0%
7.6 mph
6.8


Air Quality

AQI: 1 - Good
PM2.5: 5.13 μg/m3
PM10: 5.33 μg/m3
Carbon Monoxide: 139.54 μg/m3
Nitrogen Dioxide: 10.53 μg/m3
Sulphur Dioxide: 1.39 μg/m3
Ozone: 77.17 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

Sunny
85.5°F
67.2°F
75.7°F
80%
0.03 in
49%
0%
8.7 mph
8.4


Air Quality

AQI: 1 - Good
PM2.5: 5.08 μg/m3
PM10: 5.41 μg/m3
Carbon Monoxide: 143.88 μg/m3
Nitrogen Dioxide: 9.45 μg/m3
Sulphur Dioxide: 1.99 μg/m3
Ozone: 75.96 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

Sunday, July 26, 2026

Weather Forecast

Sunny
92.3°F
72.3°F
81.7°F
84%
0.03 in
48%
0%
10.5 mph
7.1


Air Quality

AQI: 1 - Good
PM2.5: 5.47 μg/m3
PM10: 5.78 μg/m3
Carbon Monoxide: 154.96 μg/m3
Nitrogen Dioxide: 9.42 μg/m3
Sulphur Dioxide: 1.08 μg/m3
Ozone: 83.88 μg/m3

Astronomical

Sunrise: 5:51 AM
Sun Transit: 1:08 PM
Sunset: 8:26 PM
Daylight: 14 hrs 35 mins
Moonrise: 6:58 PM
Moon Transit: 11:15 PM
Moonset: 2:39 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.3%

Best Times for Fishing or Hunting

Major Periods

10:14 AM - 12:44 AM
12:00 AM - 12:00 AM

Minor Periods

6:28 PM - 7:58 PM
2:09 AM - 3:39 AM

Action Rating: 3 out of 5

Monday, July 27, 2026

Weather Forecast

Sunny
95.3°F
76.3°F
85.2°F
70%
0 in
6%
0%
11 mph
9.9


Air Quality

AQI: 1 - Good
PM2.5: 5.02 μg/m3
PM10: 5.57 μg/m3
Carbon Monoxide: 157.51 μg/m3
Nitrogen Dioxide: 6 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 84.79 μg/m3

Astronomical

Sunrise: 5:52 AM
Sun Transit: 1:08 PM
Sunset: 8:25 PM
Daylight: 14 hrs 33 mins
Moonrise: 7:39 PM
Moon Transit: 12:00 AM
Moonset: 3:35 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:05 AM - 1:35 PM

Minor Periods

7:09 PM - 8:39 PM
3:05 AM - 4:35 AM

Action Rating: 3 out of 5

Tuesday, July 28, 2026

Weather Forecast

Sunny
92.3°F
71.8°F
81.3°F
73%
0 in
7%
0%
10.5 mph
8.6


Air Quality

AQI: 1 - Good
PM2.5: 2.85 μg/m3
PM10: 3.01 μg/m3
Carbon Monoxide: 208.25 μg/m3
Nitrogen Dioxide: 12.86 μg/m3
Sulphur Dioxide: 0.8 μg/m3
Ozone: 46.75 μg/m3

Astronomical

Sunrise: 5:53 AM
Sun Transit: 1:08 PM
Sunset: 8:24 PM
Daylight: 14 hrs 31 mins
Moonrise: 8:14 PM
Moon Transit: 12:05 AM
Moonset: 4:37 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:55 AM - 2:25 PM

Minor Periods

7:44 PM - 9:14 PM
4:07 AM - 5:37 AM

Action Rating: 4 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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