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

75.3°F
Mist
Mist
79.7°F
78.7°F
94%
SE 5.1 mph
10.3 mph
74.5°F
72.1°F
0 in
100%
6 mi
992 mbar
0.2

Five Day Weather Forecast

Sunny
Sun
H: 101°F
L: 74°F
Sunny
Mon
H: 96°F
L: 73°F
Sunny
Tue
H: 97°F
L: 74°F
Sunny
Wed
H: 88°F
L: 66°F
Sunny
Thu
H: 87°F
L: 58°F

Air Quality

AQI: 1 - Good
PM2.5: 4.2 μg/m3
PM10: 4.5 μg/m3
Carbon Monoxide: 165 μg/m3
Nitrogen Dioxide: 13.4 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 33 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

Heat Advisory issued July 25 at 1:34PM CDT until July 27 at 9:00PM CDT by NWS Lincoln IL

Effective: Sat July 25, 2026, 1:34 PM
Expires: Sun July 26, 2026, 5:00 AM

* WHAT...Heat index 105 to 110 expected. * WHERE...Portions of central, east central, and west central Illinois. * 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. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.


Extreme Heat Warning issued July 26 at 12:23AM CDT until July 27 at 9:00PM CDT by NWS Lincoln IL

Effective: Sun July 26, 2026, 12:23 AM
Expires: Sun July 26, 2026, 3:30 PM

* WHAT...Dangerously hot conditions with heat index values near 110. * WHERE...Portions of central and west central Illinois. * WHEN...From noon today to 9 PM CDT Monday. * 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.


Special Weather Statement issued July 26 at 4:26AM CDT by NWS Lincoln IL

Effective: Sun July 26, 2026, 4:26 AM
Expires: Sun July 26, 2026, 8:00 AM

Locally dense fog has formed across portions of central and southeast Illinois in the last couple of hours. Visibility may fall below one- quarter mile at times through the early morning, leading to potentially hazardous travel conditions. Expect rapid changes in visibility over short distances, with visibility possibly even near zero at times. Be sure to slow down if you encounter dense fog. Use low beam headlights if driving, and leave plenty of distance between you and the vehicle ahead.


Extreme Heat Warning issued July 26 at 3:39AM CDT until July 27 at 9:00PM CDT by NWS Lincoln IL

Effective: Sun July 26, 2026, 3:39 AM
Expires: Sun July 26, 2026, 3:30 PM

* WHAT...Dangerously hot conditions with heat index values near 110. * WHERE...Portions of central and west central Illinois. * WHEN...From noon today to 9 PM CDT Monday. * 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.


Sunday, July 26, 2026

Weather Forecast

Sunny
101.3°F
74.3°F
83.5°F
79%
0.06 in
57%
0%
11 mph
9.3


Air Quality

AQI: 1 - Good
PM2.5: 6.47 μg/m3
PM10: 6.9 μg/m3
Carbon Monoxide: 149 μg/m3
Nitrogen Dioxide: 10.5 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 70 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
95.7°F
72.9°F
84.4°F
66%
0 in
5%
0%
8.3 mph
9.8


Air Quality

AQI: 1 - Good
PM2.5: 7.05 μg/m3
PM10: 8.22 μg/m3
Carbon Monoxide: 123.5 μg/m3
Nitrogen Dioxide: 7.2 μg/m3
Sulphur Dioxide: 1.08 μg/m3
Ozone: 85.75 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
96.8°F
73.9°F
84.3°F
66%
0 in
5%
0%
10.5 mph
8.5


Air Quality

AQI: 1 - Good
PM2.5: 4.45 μg/m3
PM10: 4.64 μg/m3
Carbon Monoxide: 137.46 μg/m3
Nitrogen Dioxide: 4.98 μg/m3
Sulphur Dioxide: 0.72 μg/m3
Ozone: 83.63 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

Wednesday, July 29, 2026

Weather Forecast

Sunny
87.7°F
65.8°F
76.5°F
68%
0 in
5%
0%
9.2 mph
8.6


Air Quality

AQI: 1 - Good
PM2.5: 2.96 μg/m3
PM10: 3.05 μg/m3
Carbon Monoxide: 155.41 μg/m3
Nitrogen Dioxide: 8.01 μg/m3
Sulphur Dioxide: 0.67 μg/m3
Ozone: 64.58 μg/m3

Astronomical

Sunrise: 5:54 AM
Sun Transit: 1:08 PM
Sunset: 8:23 PM
Daylight: 14 hrs 29 mins
Moonrise: 8:42 PM
Moon Transit: 12:54 AM
Moonset: 5:42 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:24 AM - 2:54 AM
12:43 AM - 3:13 PM

Minor Periods

8:12 PM - 9:42 PM
5:12 AM - 6:42 AM

Action Rating: 4 out of 5

Thursday, July 30, 2026

Weather Forecast

Sunny
87.2°F
57.5°F
74.5°F
66%
0 in
5%
0%
6.9 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 2.26 μg/m3
PM10: 2.39 μg/m3
Carbon Monoxide: 200 μg/m3
Nitrogen Dioxide: 14.84 μg/m3
Sulphur Dioxide: 0.76 μg/m3
Ozone: 36 μg/m3

Astronomical

Sunrise: 5:55 AM
Sun Transit: 1:08 PM
Sunset: 8:22 PM
Daylight: 14 hrs 27 mins
Moonrise: 9:07 PM
Moon Transit: 1:40 AM
Moonset: 6:48 AM
Moon Phase: Full
Moon Illumination: 97.1%

Best Times for Fishing or Hunting

Major Periods

1:10 AM - 3:40 AM
1:28 PM - 3:58 PM

Minor Periods

8:37 PM - 10:07 PM
6:18 AM - 7:48 AM

Action Rating: 5 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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