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

78.1°F
Sunny
Sunny
83.4°F
79.4°F
87%
SSW 13.4 mph
26 mph
75.4°F
71.6°F
0 in
0%
8 mi
1012 mbar
0

Five Day Weather Forecast

Sunny
Tue
H: 100°F
L: 75°F
Sunny
Wed
H: 90°F
L: 73°F
Sunny
Thu
H: 91°F
L: 73°F
Sunny
Fri
H: 90°F
L: 71°F
Sunny
Sat
H: 89°F
L: 70°F

Air Quality

AQI: 1 - Good
PM2.5: 9.7 μg/m3
PM10: 14 μg/m3
Carbon Monoxide: 113 μg/m3
Nitrogen Dioxide: 4.3 μg/m3
Sulphur Dioxide: 0.9 μg/m3
Ozone: 37 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

Heat Advisory issued June 29 at 1:45PM CDT until July 3 at 12:00AM CDT by NWS Lincoln IL

Effective: Mon June 29, 2026, 1:45 PM
Expires: Tue June 30, 2026, 4:30 AM

* WHAT...Heat index values 105 to 110 expected. * WHERE...All of central and southeast Illinois. * WHEN...Until midnight CDT Thursday Night. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...The cumulative effects of this prolonged heat will pose a serious public health risk, especially for individuals outdoors or without adequate air conditioning.

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 June 30 at 12:23AM CDT until July 3 at 12:00AM CDT by NWS Lincoln IL

Effective: Tue June 30, 2026, 12:23 AM
Expires: Tue June 30, 2026, 4:00 PM

* WHAT...Dangerously hot conditions with heat index values 105 to 110. * WHERE...All of central and southeast Illinois. * WHEN...Until midnight CDT Thursday Night. * 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. 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.
Tuesday, June 30, 2026

Weather Forecast

Sunny
100.4°F
75.4°F
84.7°F
73%
0 in
6%
0%
17.2 mph
10.1


Air Quality

AQI: 1 - Good
PM2.5: 13.96 μg/m3
PM10: 20.21 μg/m3
Carbon Monoxide: 116.04 μg/m3
Nitrogen Dioxide: 3.26 μg/m3
Sulphur Dioxide: 1.01 μg/m3
Ozone: 71.25 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
90°F
72.5°F
81.4°F
77%
0 in
8%
0%
16.3 mph
10.4


Air Quality

AQI: 1 - Good
PM2.5: 12.55 μg/m3
PM10: 18.11 μg/m3
Carbon Monoxide: 115.38 μg/m3
Nitrogen Dioxide: 3.38 μg/m3
Sulphur Dioxide: 1.01 μg/m3
Ozone: 76.92 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

Thursday, July 2, 2026

Weather Forecast

Sunny
90.7°F
73.1°F
81.9°F
77%
0 in
8%
0%
11.4 mph
9.4


Air Quality

AQI: 1 - Good
PM2.5: 6.55 μg/m3
PM10: 7.8 μg/m3
Carbon Monoxide: 116.29 μg/m3
Nitrogen Dioxide: 7.19 μg/m3
Sulphur Dioxide: 1.03 μg/m3
Ozone: 73.21 μg/m3

Astronomical

Sunrise: 5:33 AM
Sun Transit: 1:06 PM
Sunset: 8:40 PM
Daylight: 15 hrs 8 mins
Moonrise: 10:38 PM
Moon Transit: 2:57 AM
Moonset: 7:51 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.5%

Best Times for Fishing or Hunting

Major Periods

2:27 AM - 4:57 AM
2:45 PM - 5:15 PM

Minor Periods

10:08 PM - 11:38 PM
7:21 AM - 8:51 AM

Action Rating: 2 out of 5

Friday, July 3, 2026

Weather Forecast

Sunny
90.4°F
70.6°F
80.4°F
79%
0 in
17%
0%
12.3 mph
9.8


Air Quality

AQI: 1 - Good
PM2.5: 4.89 μg/m3
PM10: 5.56 μg/m3
Carbon Monoxide: 132.31 μg/m3
Nitrogen Dioxide: 6.72 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 65.88 μg/m3

Astronomical

Sunrise: 5:33 AM
Sun Transit: 1:06 PM
Sunset: 8:40 PM
Daylight: 15 hrs 7 mins
Moonrise: 11:02 PM
Moon Transit: 3:42 AM
Moonset: 8:56 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.3%

Best Times for Fishing or Hunting

Major Periods

3:12 AM - 5:42 AM
3:30 PM - 6:00 PM

Minor Periods

12:00 AM - 12:00 AM
8:26 AM - 9:56 AM

Action Rating: 3 out of 5

Saturday, July 4, 2026

Weather Forecast

Sunny
88.8°F
70.1°F
80.3°F
82%
0.25 in
73%
0%
11.9 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 5.01 μg/m3
PM10: 5.73 μg/m3
Carbon Monoxide: 227.88 μg/m3
Nitrogen Dioxide: 16.43 μg/m3
Sulphur Dioxide: 0.71 μg/m3
Ozone: 34.63 μg/m3

Astronomical

Sunrise: 5:34 AM
Sun Transit: 1:06 PM
Sunset: 8:40 PM
Daylight: 15 hrs 6 mins
Moonrise: 12:02 AM
Moon Transit: 4:26 AM
Moonset: 10:01 AM
Moon Phase: Waning Gibbous
Moon Illumination: 70.6%

Best Times for Fishing or Hunting

Major Periods

3:56 AM - 6:26 AM
4:13 PM - 6:43 PM

Minor Periods

9:31 AM - 11:01 AM
12:00 AM - 12:00 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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