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

71.1°F
Partly cloudy
Partly cloudy
71.1°F
68.2°F
53%
SW 14.1 mph
25.1 mph
67.6°F
65.6°F
0 in
75%
9 mi
1007 mbar
0

Five Day Weather Forecast

Heavy rain
Wed
H: 78°F
L: 65°F
Overcast
Thu
H: 77°F
L: 57°F
Cloudy
Fri
H: 82°F
L: 54°F
Heavy rain
Sat
H: 64°F
L: 41°F
Sunny
Sun
H: 48°F
L: 36°F

Air Quality

PM2.5: 6.55 μg/m3
PM10: 6.85 μg/m3
Carbon Monoxide: 142.85 μg/m3
Nitrogen Dioxide: 4.15 μg/m3
Sulphur Dioxide: 1.45 μg/m3
Ozone: 64 μg/m3

Astronomical

Sunrise: 6:23 AM
Sun Transit: 1:02 PM
Sunset: 7:43 PM
Daylight: 13 hrs 20 mins
Moonrise: 5:15 AM
Moon Transit: 10:33 AM
Moonset: 5:55 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

10:03 AM - 12:33 AM
10:03 AM - 12:33 AM

Minor Periods

5:25 PM - 6:55 PM
4:45 AM - 6:15 AM

Action Rating: 3 out of 5

Tornado Watch issued April 14 at 6:43PM CDT until April 14 at 10:00PM CDT by NWS Quad Cities IA IL

Effective: Tue April 14, 2026, 6:43 PM
Expires: Tue April 14, 2026, 10:00 PM

TORNADO WATCH 109 REMAINS VALID UNTIL 10 PM CDT THIS EVENING FOR THE FOLLOWING AREAS IN ILLINOIS THIS WATCH INCLUDES 5 COUNTIES IN NORTHWEST ILLINOIS CARROLL JO DAVIESS ROCK ISLAND STEPHENSON WHITESIDE IN IOWA THIS WATCH INCLUDES 18 COUNTIES IN EAST CENTRAL IOWA BENTON CEDAR CLINTON IOWA JACKSON JOHNSON JONES LINN MUSCATINE SCOTT IN NORTHEAST IOWA BUCHANAN DELAWARE DUBUQUE IN SOUTHEAST IOWA HENRY IA JEFFERSON KEOKUK LOUISA WASHINGTON THIS INCLUDES THE CITIES OF ANAMOSA, BETTENDORF, CEDAR RAPIDS, CLINTON, CREDIT ISLAND, DAVENPORT, DUBUQUE, FAIRFIELD, FREEPORT, GALENA, INDEPENDENCE, IOWA CITY, MANCHESTER, MAQUOKETA, MARENGO, MOLINE, MOUNT CARROLL, MOUNT PLEASANT, MUSCATINE, ROCK ISLAND, SIGOURNEY, STERLING, TIPTON, VINTON, WAPELLO, AND WASHINGTON.


Severe Thunderstorm Watch issued April 14 at 11:38PM CDT until April 15 at 4:00AM CDT by NWS Quad Cities IA IL

Effective: Tue April 14, 2026, 11:38 PM
Expires: Wed April 15, 2026, 4:00 AM

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 117 IN EFFECT UNTIL 4 AM CDT WEDNESDAY FOR THE FOLLOWING AREAS IN ILLINOIS THIS WATCH INCLUDES 2 COUNTIES IN NORTHWEST ILLINOIS MERCER ROCK ISLAND IN IOWA THIS WATCH INCLUDES 14 COUNTIES IN EAST CENTRAL IOWA BENTON CEDAR CLINTON IOWA JACKSON JOHNSON JONES LINN MUSCATINE SCOTT IN SOUTHEAST IOWA JEFFERSON KEOKUK LOUISA WASHINGTON THIS INCLUDES THE CITIES OF ALEDO, ANAMOSA, BETTENDORF, CEDAR RAPIDS, CLINTON, CREDIT ISLAND, DAVENPORT, FAIRFIELD, IOWA CITY, MAQUOKETA, MARENGO, MOLINE, MUSCATINE, ROCK ISLAND, SIGOURNEY, TIPTON, VINTON, WAPELLO, AND WASHINGTON.


Flood Watch issued April 14 at 9:20PM CDT until April 20 at 3:00PM CDT by NWS Quad Cities IA IL

Effective: Tue April 14, 2026, 9:20 PM
Expires: Wed April 15, 2026, 9:30 PM

...The Flood Watch continues for the following rivers in Illinois... Rock River near Joslin affecting Rock Island, Whiteside and Henry IL zones. * WHAT...Flooding is possible. * WHERE...Rock River near Joslin. * WHEN...From Saturday evening to Monday afternoon. * IMPACTS...At 12.0 feet, Water affects low lying agricultural land. * ADDITIONAL DETAILS... - At 8:45 PM CDT Tuesday the stage was 9.8 feet. - Forecast...Flood stage may be reached Saturday evening. - Flood stage is 12.0 feet.

If you are in the watch area, remain alert to possible flooding. Residents and those with interests near the river should monitor rising water levels and be prepared for possible flood warnings. The next statement will be issued by Wednesday evening at 930 PM CDT.


Flood Warning issued April 14 at 10:30AM CDT until April 16 at 7:00PM CDT by NWS Quad Cities IA IL

Effective: Tue April 14, 2026, 10:30 AM
Expires: Wed April 15, 2026, 10:30 AM

...The Flood Warning is extended for the following rivers in Iowa... Wapsipinicon River near De Witt 4S affecting Scott and Clinton Counties. .Additional rainfall during the first half of this week may prolong this crest, or cause the river to rise again mid to late week. * WHAT...Major flooding is occurring and major flooding is forecast. * WHERE...Wapsipinicon River near De Witt 4S. * WHEN...Until Thursday evening. * IMPACTS...At 12.5 feet, water affects old U.S. Highway 61 near the river. * ADDITIONAL DETAILS... - At 9:30 AM CDT Tuesday the stage was 12.5 feet. - Forecast...The river is expected to fall below flood stage late Thursday morning and continue falling through the weekend. - Flood stage is 11.0 feet.

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Caution is urged when walking near riverbanks. The next statement will be issued by Wednesday morning at 1030 AM CDT.


Flood Warning issued April 14 at 8:49PM CDT until April 16 at 3:00PM CDT by NWS Quad Cities IA IL

Effective: Tue April 14, 2026, 8:49 PM
Expires: Wed April 15, 2026, 9:00 PM

...The Flood Warning continues for the following rivers in Iowa... Wapsipinicon River near De Witt 4S affecting Clinton and Scott Counties. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Wapsipinicon River near De Witt 4S. * WHEN...Until Thursday afternoon. * IMPACTS...At 12.5 feet, water affects old U.S. Highway 61 near the river. * ADDITIONAL DETAILS... - At 8:30 PM CDT Tuesday the stage was 12.3 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:30 PM CDT Tuesday was 12.6 feet. - Forecast...The river is expected to fall below flood stage Thursday morning and continue falling to 9.5 feet Tuesday, April 21. - Flood stage is 11.0 feet.

Motorists should not attempt to drive around barricades or drive cars through flooded areas. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Caution is urged when walking near riverbanks. The next statement will be issued by Wednesday evening at 900 PM CDT.


Wednesday, April 15, 2026

Weather Forecast

Heavy rain
77.9°F
64.8°F
69.4°F
88%
1.55 in
88%
0%
17.4 mph
1.1


Air Quality

AQI: 1 - Good
PM2.5: 5.79 μg/m3
PM10: 6.28 μg/m3
Carbon Monoxide: 161.49 μg/m3
Nitrogen Dioxide: 6.01 μg/m3
Sulphur Dioxide: 1.36 μg/m3
Ozone: 66.56 μg/m3

Astronomical

Sunrise: 6:23 AM
Sun Transit: 1:02 PM
Sunset: 7:43 PM
Daylight: 13 hrs 20 mins
Moonrise: 5:15 AM
Moon Transit: 10:33 AM
Moonset: 5:55 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

10:03 AM - 12:33 AM
10:03 AM - 12:33 AM

Minor Periods

5:25 PM - 6:55 PM
4:45 AM - 6:15 AM

Action Rating: 3 out of 5

Thursday, April 16, 2026

Weather Forecast

Overcast
76.6°F
56.7°F
65°F
77%
0 in
0%
0%
15.7 mph
1.7


Air Quality

AQI: 1 - Good
PM2.5: 3.91 μg/m3
PM10: 4.44 μg/m3
Carbon Monoxide: 162.01 μg/m3
Nitrogen Dioxide: 4.14 μg/m3
Sulphur Dioxide: 1.19 μg/m3
Ozone: 73.72 μg/m3

Astronomical

Sunrise: 6:21 AM
Sun Transit: 1:02 PM
Sunset: 7:44 PM
Daylight: 13 hrs 23 mins
Moonrise: 5:38 AM
Moon Transit: 12:17 AM
Moonset: 7:11 PM
Moon Phase: New
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:47 AM - 2:17 PM

Minor Periods

6:41 PM - 8:11 PM
5:08 AM - 6:38 AM

Action Rating: 5 out of 5

Friday, April 17, 2026

Weather Forecast

Cloudy
81.9°F
54.1°F
67.6°F
78%
0 in
0%
0%
23.7 mph
1.7


Air Quality

AQI: 1 - Good
PM2.5: 6.4 μg/m3
PM10: 7.44 μg/m3
Carbon Monoxide: 181.04 μg/m3
Nitrogen Dioxide: 9.5 μg/m3
Sulphur Dioxide: 1.6 μg/m3
Ozone: 77 μg/m3

Astronomical

Sunrise: 6:19 AM
Sun Transit: 1:01 PM
Sunset: 7:45 PM
Daylight: 13 hrs 26 mins
Moonrise: 6:04 AM
Moon Transit: 1:09 PM
Moonset: 8:30 PM
Moon Phase: New
Moon Illumination: 4.1%

Best Times for Fishing or Hunting

Major Periods

12:08 AM - 2:38 AM
12:39 AM - 3:09 PM

Minor Periods

8:00 PM - 9:30 PM
5:34 AM - 7:04 AM

Action Rating: 4 out of 5

Saturday, April 18, 2026

Weather Forecast

Heavy rain
64°F
41.2°F
51.8°F
71%
2.51 in
85%
0%
23.7 mph
1.7


Air Quality

AQI: 1 - Good
PM2.5: 5.49 μg/m3
PM10: 6.17 μg/m3
Carbon Monoxide: 162.95 μg/m3
Nitrogen Dioxide: 4.68 μg/m3
Sulphur Dioxide: 1.79 μg/m3
Ozone: 89.62 μg/m3

Astronomical

Sunrise: 6:18 AM
Sun Transit: 1:01 PM
Sunset: 7:46 PM
Daylight: 13 hrs 28 mins
Moonrise: 6:35 AM
Moon Transit: 2:06 PM
Moonset: 9:52 PM
Moon Phase: New
Moon Illumination: 1.2%

Best Times for Fishing or Hunting

Major Periods

1:02 AM - 3:32 AM
1:36 PM - 4:06 PM

Minor Periods

9:22 PM - 10:52 PM
6:05 AM - 7:35 AM

Action Rating: 4 out of 5

Sunday, April 19, 2026

Weather Forecast

Sunny
47.8°F
36.2°F
40°F
53%
0 in
0%
0%
18.8 mph
0


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:16 AM
Sun Transit: 1:01 PM
Sunset: 7:47 PM
Daylight: 13 hrs 31 mins
Moonrise: 7:13 AM
Moon Transit: 3:07 PM
Moonset: 11:12 PM
Moon Phase: Waxing Crescent
Moon Illumination: 4.9%

Best Times for Fishing or Hunting

Major Periods

2:01 AM - 4:31 AM
2:37 PM - 5:07 PM

Minor Periods

12:00 AM - 12:00 AM
6:43 AM - 8:13 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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