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

47.6°F
Overcast
Conditions: Overcast
Humidity: 74%
Feels Like: 42.3°F
Wind: N 12.5 mph
Wind Gusts: 20.6 mph
Pressure: 30.04 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 6 mi
UV Index: 0

Weather Forecast

Overcast
Thu
H: 54°F
L: 47°F
Sunny
Fri
H: 48°F
L: 37°F
Sunny
Sat
H: 51°F
L: 34°F

Air Quality

EPA Index 1 • Good

Air quality is satisfactory, and air pollution poses little or no risk.

PM2.5
0.9 μg/m³
Good
PM10
0.9 μg/m³
Good
Ozone (O3)
62 μg/m³
Photochemical
NO2
3.4 μg/m³
Nitrogen Dioxide
SO2
0.4 μg/m³
Sulfur Dioxide
CO
132 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 13m daylight
Sunrise 6:39 AM
Solar Noon 11:45 AM
Sunset 4:52 PM
Moon
Waning Crescent • 11%
Moonrise 2:53 AM
Transit 9:00 AM
Moonset 2:54 PM

Best Times for Fishing or Hunting

Major Periods

8:30 AM - 11:00 AM
8:50 PM - 11:20 PM

Minor Periods

2:23 AM - 3:53 AM
2:24 PM - 3:54 PM
Action Rating:
Fair Action 2/5
Thursday, November 5, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 50°F
Average Humidity: 78%
Chance of Rain: 41%
Wind: 13 mph
UV Index: 0.2

Astronomical

Sun
10h 13m daylight
Sunrise 6:39 AM
Solar Noon 11:45 AM
Sunset 4:52 PM
Moon
Waning Crescent • 11%
Moonrise 2:53 AM
Transit 9:00 AM
Moonset 2:54 PM

Best Times for Fishing or Hunting

Major Periods

8:30 AM - 11:00 AM
8:50 PM - 11:20 PM

Minor Periods

2:23 AM - 3:53 AM
2:24 PM - 3:54 PM
Action Rating:
Fair Action 2/5
Friday, November 6, 2026

Weather Forecast

Conditions: Sunny
Average Temperature: 42.3°F
Average Humidity: 63%
Chance of Rain: 5%
Wind: 11.4 mph
UV Index: 2.6

Astronomical

Sun
10h 11m daylight
Sunrise 6:41 AM
Solar Noon 11:45 AM
Sunset 4:51 PM
Moon
Waning Crescent • 5%
Moonrise 4:00 AM
Transit 9:42 AM
Moonset 3:16 PM

Best Times for Fishing or Hunting

Major Periods

9:12 AM - 11:42 AM
9:34 PM - 12:04 AM

Minor Periods

3:30 AM - 5:00 AM
2:46 PM - 4:16 PM
Action Rating:
Fair Action 2/5
Saturday, November 7, 2026

Weather Forecast

Conditions: Sunny
Average Temperature: 41.4°F
Average Humidity: 66%
Chance of Rain: 8%
Wind: 7.8 mph
UV Index: 2.3

Astronomical

Sun
10h 8m daylight
Sunrise 6:42 AM
Solar Noon 11:45 AM
Sunset 4:50 PM
Moon
Waning Crescent • 1%
Moonrise 5:06 AM
Transit 10:27 AM
Moonset 3:39 PM

Best Times for Fishing or Hunting

Major Periods

9:57 AM - 12:27 PM
10:20 PM - 12:50 AM

Minor Periods

4:36 AM - 6:06 AM
3:09 PM - 4:39 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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