Water Temperature of the Mississippi River in Rock Island, IL

Current Water Temperature

32.0°F 0.0°C
Frigid Dangerously Cold
32.0°F
Frigid < 50°F
Cold 50°–60°
Cool 60°–70°
Comfortable 70°–80°
Warm 80°+

Severe hypothermia and cold water shock risk. Unprotected swimming causes rapid loss of dexterity in under 5 minutes.

Measurement Time: Sunday, December 14, 2025, 9:00 AM CST

Temperature Locations

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Local Points of Interest

Davenport, IA; Arsenal Island

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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

30.7°F
Sunny
Conditions: Sunny
Humidity: 94%
Feels Like: 26.2°F
Wind: SSE 0.8 mph
Wind Gusts: 1.4 mph
Pressure: 30.41 in
Precipitation: 0 in
Cloud Cover: 2%
Visibility: 8 mi
UV Index: 0.7

Five-Day Weather Forecast

Overcast
Sun
H: 49°F
L: 27°F
Overcast
Mon
H: 53°F
L: 31°F
Overcast
Tue
H: 57°F
L: 34°F
Overcast
Wed
H: 59°F
L: 43°F
Sunny
Thu
H: 62°F
L: 49°F

Air Quality

EPA Index 2 • Moderate

Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.

PM2.5
14.3 μg/m³
Moderate
PM10
14.8 μg/m³
Good
Ozone (O3)
13 μg/m³
Photochemical
NO2
25.9 μg/m³
Nitrogen Dioxide
SO2
1.2 μg/m³
Sulfur Dioxide
CO
252 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 51m daylight
Sunrise 6:51 AM
Solar Noon 11:46 AM
Sunset 4:42 PM
Moon
Waxing Crescent • 31%
Moonrise 12:11 PM
Transit 5:00 PM
Moonset 9:56 PM

Best Times for Fishing or Hunting

Major Periods

4:07 AM - 6:37 AM
4:30 PM - 7:00 PM

Minor Periods

11:41 AM - 1:11 PM
9:26 PM - 10:56 PM
Action Rating:
Very Good 4/5
Sunday, November 15, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 36.5°F
Average Humidity: 77%
Chance of Rain: 0%
Wind: 2.8 mph
UV Index: 3

Air Quality

EPA Index 2 • Moderate
PM2.5
11.5 μg/m³
Good
PM10
11.8 μg/m³
Good
Ozone (O3)
21.7 μg/m³
Photochemical
NO2
29.4 μg/m³
Nitrogen Dioxide
SO2
1.7 μg/m³
Sulfur Dioxide
CO
227.1 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 51m daylight
Sunrise 6:51 AM
Solar Noon 11:46 AM
Sunset 4:42 PM
Moon
Waxing Crescent • 31%
Moonrise 12:11 PM
Transit 5:00 PM
Moonset 9:56 PM

Best Times for Fishing or Hunting

Major Periods

4:07 AM - 6:37 AM
4:30 PM - 7:00 PM

Minor Periods

11:41 AM - 1:11 PM
9:26 PM - 10:56 PM
Action Rating:
Very Good 4/5
Monday, November 16, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 39.4°F
Average Humidity: 67%
Chance of Rain: 0%
Wind: 8.8 mph
UV Index: 2.9

Air Quality

EPA Index 2 • Moderate
PM2.5
10.5 μg/m³
Good
PM10
10.7 μg/m³
Good
Ozone (O3)
34.8 μg/m³
Photochemical
NO2
20.2 μg/m³
Nitrogen Dioxide
SO2
2.2 μg/m³
Sulfur Dioxide
CO
184.6 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 49m daylight
Sunrise 6:53 AM
Solar Noon 11:47 AM
Sunset 4:42 PM
Moon
First Quarter • 42%
Moonrise 12:38 PM
Transit 5:44 PM
Moonset 11:00 PM

Best Times for Fishing or Hunting

Major Periods

4:52 AM - 7:22 AM
5:14 PM - 7:44 PM

Minor Periods

12:08 PM - 1:38 PM
10:30 PM - 12:00 AM
Action Rating:
Good Action 3/5
Tuesday, November 17, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 45.3°F
Average Humidity: 54%
Chance of Rain: 0%
Wind: 11.6 mph
UV Index: 3

Air Quality

EPA Index 2 • Moderate
PM2.5
10.9 μg/m³
Good
PM10
11 μg/m³
Good
Ozone (O3)
44 μg/m³
Photochemical
NO2
9.8 μg/m³
Nitrogen Dioxide
SO2
3.4 μg/m³
Sulfur Dioxide
CO
172.6 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 47m daylight
Sunrise 6:54 AM
Solar Noon 11:47 AM
Sunset 4:41 PM
Moon
First Quarter • 54%
Moonrise 1:01 PM
Transit 6:27 PM
Moonset 12:04 AM

Best Times for Fishing or Hunting

Major Periods

5:36 AM - 8:06 AM
5:57 PM - 8:27 PM

Minor Periods

12:31 PM - 2:01 PM
11:34 PM - 1:04 AM
Action Rating:
Fair Action 2/5
Wednesday, November 18, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 51.1°F
Average Humidity: 49%
Chance of Rain: 3%
Wind: 17.2 mph
UV Index: 2.9

Air Quality

EPA Index 2 • Moderate
PM2.5
8.5 μg/m³
Good
PM10
8.6 μg/m³
Good
Ozone (O3)
60.3 μg/m³
Photochemical
NO2
6.2 μg/m³
Nitrogen Dioxide
SO2
1.9 μg/m³
Sulfur Dioxide
CO
171.4 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 45m daylight
Sunrise 6:55 AM
Solar Noon 11:47 AM
Sunset 4:40 PM
Moon
First Quarter • 65%
Moonrise 1:22 PM
Transit 7:10 PM
Moonset 12:04 AM

Best Times for Fishing or Hunting

Major Periods

6:18 AM - 8:48 AM
6:40 PM - 9:10 PM

Minor Periods

12:52 PM - 2:22 PM
11:34 PM - 1:04 AM
Action Rating:
Fair Action 2/5
Thursday, November 19, 2026

Weather Forecast

Conditions: Sunny
Average Temperature: 54.3°F
Average Humidity: 59%
Chance of Rain: 17%
Wind: 17.2 mph
UV Index: 2.9

Air Quality

EPA Index 1 • Good
PM2.5
4.6 μg/m³
Good
PM10
4.9 μg/m³
Good
Ozone (O3)
60.2 μg/m³
Photochemical
NO2
4.4 μg/m³
Nitrogen Dioxide
SO2
1.3 μg/m³
Sulfur Dioxide
CO
175.5 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 43m daylight
Sunrise 6:56 AM
Solar Noon 11:47 AM
Sunset 4:39 PM
Moon
Waxing Gibbous • 75%
Moonrise 1:43 PM
Transit 7:53 PM
Moonset 1:09 AM

Best Times for Fishing or Hunting

Major Periods

7:01 AM - 9:31 AM
7:23 PM - 9:53 PM

Minor Periods

12:39 AM - 2:09 AM
1:13 PM - 2:43 PM
Action Rating:
Good Action 3/5
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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