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

84.4°F
Overcast
Overcast
90.5°F
99.7°F
79%
SSE 14.3 mph
17.4 mph
88.5°F
76.1°F
0 in
100%
9 mi
1010 mbar
8.2

Five Day Weather Forecast

Sunny
Sun
H: 91°F
L: 67°F
Sunny
Mon
H: 90°F
L: 74°F
Sunny
Tue
H: 90°F
L: 74°F
Sunny
Wed
H: 90°F
L: 73°F
Sunny
Thu
H: 90°F
L: 73°F

Air Quality

AQI: 1 - Good
PM2.5: 4.3 μg/m3
PM10: 4.6 μg/m3
Carbon Monoxide: 117 μg/m3
Nitrogen Dioxide: 1.7 μg/m3
Sulphur Dioxide: 1.1 μg/m3
Ozone: 86 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

Heat Advisory issued June 28 at 2:13AM CDT until July 3 at 12:00AM CDT by NWS Lincoln IL

Effective: Sun June 28, 2026, 2:13 AM
Expires: Sun June 28, 2026, 7:00 PM

* WHAT...For the first Heat Advisory, heat index values 100 to 105 expected. For the second Heat Advisory, heat index values 105 to 110 expected. * WHERE...Along and southwest of a Peoria...to Decatur...to Robinson line. * WHEN...For the first Heat Advisory, from 1 PM this afternoon to 7 PM CDT this evening. For the second Heat Advisory, from 11 AM Monday to midnight CDT Thursday Night. * 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. Monitor the latest forecasts and warnings for updates.


Heat Advisory issued June 28 at 2:13AM CDT until June 28 at 7:00PM CDT by NWS Lincoln IL

Effective: Sun June 28, 2026, 2:13 AM
Expires: Sun June 28, 2026, 7:00 PM

* WHAT...For the first Heat Advisory, heat index values 100 to 105 expected. For the second Heat Advisory, heat index values 105 to 110 expected. * WHERE...Along and southwest of a Peoria...to Decatur...to Robinson line. * WHEN...For the first Heat Advisory, from 1 PM this afternoon to 7 PM CDT this evening. For the second Heat Advisory, from 11 AM Monday to midnight CDT Thursday Night. * 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. Monitor the latest forecasts and warnings for updates.


Heat Advisory issued June 28 at 8:43AM CDT until July 3 at 12:00AM CDT by NWS Lincoln IL

Effective: Sun June 28, 2026, 8:43 AM
Expires: Sun June 28, 2026, 4:45 PM

* WHAT...For the first Heat Advisory, heat index values 100 to 105 expected. For the second Heat Advisory, heat index values 105 to 110 expected. * WHERE...Peoria, Stark, Cass, Fulton, Knox, Morgan, Schuyler, and Scott Counties. * WHEN...For the first Heat Advisory, from 1 PM this afternoon to 7 PM CDT this evening. For the second Heat Advisory, from 11 AM Monday to midnight CDT Thursday Night. * 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. Monitor the latest forecasts and warnings for updates.


Heat Advisory issued June 28 at 8:43AM CDT until June 28 at 7:00PM CDT by NWS Lincoln IL

Effective: Sun June 28, 2026, 8:43 AM
Expires: Sun June 28, 2026, 4:45 PM

* WHAT...For the first Heat Advisory, heat index values 100 to 105 expected. For the second Heat Advisory, heat index values 105 to 110 expected. * WHERE...Peoria, Stark, Cass, Fulton, Knox, Morgan, Schuyler, and Scott Counties. * WHEN...For the first Heat Advisory, from 1 PM this afternoon to 7 PM CDT this evening. For the second Heat Advisory, from 11 AM Monday to midnight CDT Thursday Night. * 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. Monitor the latest forecasts and warnings for updates.


Heat Advisory issued June 28 at 7:26AM CDT until July 3 at 12:00AM CDT by NWS Lincoln IL

Effective: Sun June 28, 2026, 7:26 AM
Expires: Sun June 28, 2026, 3:30 PM

* WHAT...For the first Heat Advisory, heat index values up to 105 expected. For the second Heat Advisory, heat index values up to 107 expected. * WHERE...Peoria, Stark, Cass, Fulton, Knox, Morgan, Schuyler, and Scott Counties. * WHEN...For the first Heat Advisory, from 1 PM this afternoon to 7 PM CDT this evening. For the second Heat Advisory, from 11 AM Monday to midnight CDT Thursday Night. * 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. Monitor the latest forecasts and warnings for updates.
Sunday, June 28, 2026

Weather Forecast

Sunny
91.2°F
66.6°F
79°F
79%
0 in
11%
0%
15.7 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
89.8°F
73.7°F
81.5°F
81%
0 in
10%
0%
17 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
90.1°F
73.5°F
81.3°F
78%
0 in
8%
0%
15.4 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
89.6°F
73.2°F
81°F
79%
0 in
9%
0%
14.8 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

Thursday, July 2, 2026

Weather Forecast

Sunny
90.2°F
72.5°F
81.1°F
79%
0.03 in
39%
0%
13 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 5.96 μg/m3
PM10: 6.84 μg/m3
Carbon Monoxide: 197.75 μg/m3
Nitrogen Dioxide: 6.11 μg/m3
Sulphur Dioxide: 1.04 μg/m3
Ozone: 48.25 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

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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