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

89.2°F
Clear
Clear
97.5°F
97.9°F
59%
SSW 10.5 mph
22.1 mph
89.2°F
73.1°F
0 in
0%
6 mi
1005 mbar
0

Five Day Weather Forecast

Sunny
Mon
H: 103°F
L: 73°F
Sunny
Tue
H: 82°F
L: 68°F
Sunny
Wed
H: 85°F
L: 62°F
Sunny
Thu
H: 86°F
L: 65°F
Light rain
Fri
H: 74°F
L: 66°F

Air Quality

AQI: 1 - Good
PM2.5: 5.2 μg/m3
PM10: 6.1 μg/m3
Carbon Monoxide: 137 μg/m3
Nitrogen Dioxide: 7.8 μg/m3
Sulphur Dioxide: 0.9 μg/m3
Ozone: 84 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

Extreme Heat Warning issued July 27 at 8:05AM CDT until July 27 at 9:00PM CDT by NWS Lincoln IL

Effective: Mon July 27, 2026, 8:05 AM
Expires: Mon July 27, 2026, 9:00 PM

* WHAT...Dangerously hot conditions with heat index values up to 115. * WHERE...Portions of central and west central Illinois. * WHEN...Until 9 PM CDT this evening. * IMPACTS...Extreme heat and humidity will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. * ADDITIONAL DETAILS...Thunderstorms could move into area late this afternoon or evening, cooling temperatures and heat indices.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. When possible reschedule outdoor strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.


Extreme Heat Warning issued July 27 at 1:41PM CDT until July 27 at 9:00PM CDT by NWS Lincoln IL

Effective: Mon July 27, 2026, 1:41 PM
Expires: Mon July 27, 2026, 9:00 PM

* WHAT...Dangerously hot conditions with heat index values up to 112. * WHERE...Portions of central, east central, southeast, and west central Illinois. * WHEN...Until 9 PM CDT this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...Thunderstorms could move into area late this afternoon or evening, cooling temperatures and heat indices.

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. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.


Extreme Heat Warning issued July 27 at 11:18AM CDT until July 27 at 9:00PM CDT by NWS Lincoln IL

Effective: Mon July 27, 2026, 11:18 AM
Expires: Mon July 27, 2026, 9:00 PM

* WHAT...Dangerously hot conditions with heat index values up to 116. * WHERE...Portions of central and west central Illinois. * WHEN...Until 9 PM CDT this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...Thunderstorms could move into area late this afternoon or evening, cooling temperatures and heat indices.

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. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.


Monday, July 27, 2026

Weather Forecast

Sunny
102.7°F
73.2°F
88°F
69%
0 in
7%
0%
15 mph
7.4


Air Quality

AQI: 1 - Good
PM2.5: 6.04 μg/m3
PM10: 7.09 μg/m3
Carbon Monoxide: 129.29 μg/m3
Nitrogen Dioxide: 8.83 μg/m3
Sulphur Dioxide: 1.04 μg/m3
Ozone: 80.17 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
82.2°F
67.5°F
76.4°F
72%
0 in
7%
0%
12.5 mph
7.2


Air Quality

AQI: 1 - Good
PM2.5: 5.14 μg/m3
PM10: 5.5 μg/m3
Carbon Monoxide: 136 μg/m3
Nitrogen Dioxide: 5.24 μg/m3
Sulphur Dioxide: 0.74 μg/m3
Ozone: 83.54 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
84.8°F
61.5°F
73.2°F
69%
0 in
6%
0%
6.7 mph
8.3


Air Quality

AQI: 1 - Good
PM2.5: 7.13 μg/m3
PM10: 7.4 μg/m3
Carbon Monoxide: 151 μg/m3
Nitrogen Dioxide: 8.86 μg/m3
Sulphur Dioxide: 1.06 μg/m3
Ozone: 73.08 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
85.6°F
64.8°F
75°F
73%
0 in
8%
0%
9.6 mph
6.1


Air Quality

AQI: 1 - Good
PM2.5: 5.76 μg/m3
PM10: 6 μg/m3
Carbon Monoxide: 161.3 μg/m3
Nitrogen Dioxide: 8.25 μg/m3
Sulphur Dioxide: 1.24 μg/m3
Ozone: 82.5 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

Friday, July 31, 2026

Weather Forecast

Light rain
74.2°F
65.9°F
68.8°F
88%
0.7 in
87%
0%
12.3 mph
1.4


Air Quality

AQI: 1 - Good
PM2.5: 4.43 μg/m3
PM10: 4.61 μg/m3
Carbon Monoxide: 254.5 μg/m3
Nitrogen Dioxide: 12.8 μg/m3
Sulphur Dioxide: 1.6 μg/m3
Ozone: 53.38 μg/m3

Astronomical

Sunrise: 5:56 AM
Sun Transit: 1:08 PM
Sunset: 8:21 PM
Daylight: 14 hrs 25 mins
Moonrise: 9:28 PM
Moon Transit: 2:25 AM
Moonset: 7:53 AM
Moon Phase: Full
Moon Illumination: 92.0%

Best Times for Fishing or Hunting

Major Periods

1:55 AM - 4:25 AM
2:12 PM - 4:42 PM

Minor Periods

8:58 PM - 10:28 PM
7:23 AM - 8:53 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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