Water Temperature of the Mississippi River in Keokuk, IA
Current Water Temperature
74.1°F
Measurement Time: Sunday, September 14, 2025, 10:45 PM CDT
Temperature Locations
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Local Points of Interest
Hamilton, IL; Montebello State Park; Victory Park; Lock and Dam 19Sponsored Content
Mississippi River
Station Name: Mississippi River at Keokuk, IA
Data Source: Water Data - usgc.gov
Elevation Above Sea Level: 505 feet / 154 meters
Nearest Address:
434 N Water St
Keokuk, IA 52632
Lee County
GPS Coordinates: 40.39365535, -91.374318
Nearby Water Temperatures
Mississippi River, Canton, MO (18.8 mi)Mississippi River, Quincy, IL (34.0 mi)
Mississippi River, Gladstone, IL (38.4 mi)
Mississippi River, Saverton, MO (52.8 mi)
Illinois River, La Grange, IL (54.3 mi)
Mississippi River, New Boston, IL (57.6 mi)
Illinois River, Florence, IL (66.4 mi)
Des Moines River, Ottumwa, IA (69.1 mi)
Mississippi River, Illinois City, IL (73.8 mi)
Long Branch Lake, Macon, MO (74.5 mi)
Mississippi River, Clarksville, MO (74.7 mi)
Mason Tazewell Drainage Ditch, Topeka, IL (77.0 mi)
Mississippi River, Rock Island, IL (88.4 mi)
Illinois River, Peoria, IL (93.4 mi)
Mississippi River, Le Claire, IA (96.1 mi)
Weather for Keokuk, Iowa
Current Weather
73.8°F

Conditions: Overcast
Humidity: 78%
Feels Like: 78.2°F
Wind: S 5.4 mph
Wind Gusts: 11.3 mph
Humidity: 78%
Feels Like: 78.2°F
Wind: S 5.4 mph
Wind Gusts: 11.3 mph
Pressure: 30.04 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 9 mi
UV Index: 0
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 9 mi
UV Index: 0
Five Day Weather Forecast

Mon
H: 84°F
L: 70°F

Tue
H: 90°F
L: 65°F

Wed
H: 92°F
L: 65°F

Thu
H: 97°F
L: 65°F

Fri
H: 85°F
L: 65°F
Air Quality
PM2.5:
21.28 μg/m3
PM10:
21.46 μg/m3
Carbon Monoxide: 408.85 μg/m3
Nitrogen Dioxide: 10.18 μg/m3
Sulphur Dioxide: 17.21 μg/m3
Ozone: 96 μg/m3
Nitrogen Dioxide: 10.18 μg/m3
Sulphur Dioxide: 17.21 μg/m3
Ozone: 96 μg/m3
Astronomical
Sunrise: 6:47 AM
Sun Transit: 1:00 PM
Sunset: 7:14 PM
Daylight: 12 hrs 27 mins
Sun Transit: 1:00 PM
Sunset: 7:14 PM
Daylight: 12 hrs 27 mins
Moonrise: 12:50 AM
Moon Transit: 8:00 AM
Moonset: 4:04 PM
Moon Phase: Last Quarter
Moon Illumination: 34.0%
Moon Transit: 8:00 AM
Moonset: 4:04 PM
Moon Phase: Last Quarter
Moon Illumination: 34.0%
Best Times for Fishing or Hunting
Major Periods
7:30 AM - 10:00 AM7:47 PM - 10:17 PM
Minor Periods
3:34 PM - 5:04 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Monday, September 15, 2025
Weather Forecast
Conditions: Patchy rain nearby
Average Temperature: 75.9°F
Average Humidity: 87%
Average Temperature: 75.9°F
Average Humidity: 87%
Chance of Rain: 73%
Wind: 6.7 mph
UV Index: 1.4
Wind: 6.7 mph
UV Index: 1.4
Air Quality
AQI:
2 - Moderate
PM2.5:
18.03 μg/m3
PM10:
18.46 μg/m3
Carbon Monoxide: 393.98 μg/m3
Nitrogen Dioxide: 11.23 μg/m3
Sulphur Dioxide: 8.59 μg/m3
Ozone: 103.68 μg/m3
Nitrogen Dioxide: 11.23 μg/m3
Sulphur Dioxide: 8.59 μg/m3
Ozone: 103.68 μg/m3
Astronomical
Sunrise: 6:47 AM
Sun Transit: 1:00 PM
Sunset: 7:14 PM
Daylight: 12 hrs 27 mins
Sun Transit: 1:00 PM
Sunset: 7:14 PM
Daylight: 12 hrs 27 mins
Moonrise: 12:50 AM
Moon Transit: 8:00 AM
Moonset: 4:04 PM
Moon Phase: Last Quarter
Moon Illumination: 34.0%
Moon Transit: 8:00 AM
Moonset: 4:04 PM
Moon Phase: Last Quarter
Moon Illumination: 34.0%
Best Times for Fishing or Hunting
Major Periods
7:30 AM - 10:00 AM7:47 PM - 10:17 PM
Minor Periods
3:34 PM - 5:04 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Tuesday, September 16, 2025
Weather Forecast
Conditions: Partly Cloudy
Average Temperature: 76.1°F
Average Humidity: 72%
Average Temperature: 76.1°F
Average Humidity: 72%
Chance of Rain: 0%
Wind: 9.6 mph
UV Index: 1.4
Wind: 9.6 mph
UV Index: 1.4
Air Quality
AQI:
2 - Moderate
PM2.5:
22.95 μg/m3
PM10:
23.43 μg/m3
Carbon Monoxide: 368.08 μg/m3
Nitrogen Dioxide: 10.94 μg/m3
Sulphur Dioxide: 9.69 μg/m3
Ozone: 104.8 μg/m3
Nitrogen Dioxide: 10.94 μg/m3
Sulphur Dioxide: 9.69 μg/m3
Ozone: 104.8 μg/m3
Astronomical
Sunrise: 6:48 AM
Sun Transit: 1:00 PM
Sunset: 7:12 PM
Daylight: 12 hrs 24 mins
Sun Transit: 1:00 PM
Sunset: 7:12 PM
Daylight: 12 hrs 24 mins
Moonrise: 12:58 AM
Moon Transit: 8:57 AM
Moonset: 4:49 PM
Moon Phase: Last Quarter
Moon Illumination: 23.8%
Moon Transit: 8:57 AM
Moonset: 4:49 PM
Moon Phase: Last Quarter
Moon Illumination: 23.8%
Best Times for Fishing or Hunting
Major Periods
8:27 AM - 10:57 AM8:44 PM - 11:14 PM
Minor Periods
4:19 PM - 5:49 PM12:28 AM - 1:58 AM
Action Rating: 2 out of 5
Wednesday, September 17, 2025
Weather Forecast
Conditions: Sunny
Average Temperature: 76.7°F
Average Humidity: 64%
Average Temperature: 76.7°F
Average Humidity: 64%
Chance of Rain: 0%
Wind: 9.2 mph
UV Index: 1.4
Wind: 9.2 mph
UV Index: 1.4
Air Quality
AQI:
2 - Moderate
PM2.5:
27.27 μg/m3
PM10:
27.94 μg/m3
Carbon Monoxide: 377.1 μg/m3
Nitrogen Dioxide: 22.51 μg/m3
Sulphur Dioxide: 6.67 μg/m3
Ozone: 100.08 μg/m3
Nitrogen Dioxide: 22.51 μg/m3
Sulphur Dioxide: 6.67 μg/m3
Ozone: 100.08 μg/m3
Astronomical
Sunrise: 6:49 AM
Sun Transit: 1:00 PM
Sunset: 7:10 PM
Daylight: 12 hrs 21 mins
Sun Transit: 1:00 PM
Sunset: 7:10 PM
Daylight: 12 hrs 21 mins
Moonrise: 2:09 AM
Moon Transit: 9:52 AM
Moonset: 5:24 PM
Moon Phase: Waning Crescent
Moon Illumination: 14.9%
Moon Transit: 9:52 AM
Moonset: 5:24 PM
Moon Phase: Waning Crescent
Moon Illumination: 14.9%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM9:22 AM - 11:52 AM
Minor Periods
4:54 PM - 6:24 PM1:39 AM - 3:09 AM
Action Rating: 2 out of 5
Thursday, September 18, 2025
Weather Forecast
Conditions: Sunny
Average Temperature: 78.8°F
Average Humidity: 43%
Average Temperature: 78.8°F
Average Humidity: 43%
Chance of Rain: 0%
Wind: 15.4 mph
UV Index: 1.2
Wind: 15.4 mph
UV Index: 1.2
Air Quality
AQI:
2 - Moderate
PM2.5:
23.51 μg/m3
PM10:
23.99 μg/m3
Carbon Monoxide: 437.31 μg/m3
Nitrogen Dioxide: 20.78 μg/m3
Sulphur Dioxide: 4.75 μg/m3
Ozone: 81.54 μg/m3
Nitrogen Dioxide: 20.78 μg/m3
Sulphur Dioxide: 4.75 μg/m3
Ozone: 81.54 μg/m3
Astronomical
Sunrise: 6:50 AM
Sun Transit: 1:00 PM
Sunset: 7:09 PM
Daylight: 12 hrs 19 mins
Sun Transit: 1:00 PM
Sunset: 7:09 PM
Daylight: 12 hrs 19 mins
Moonrise: 3:20 AM
Moon Transit: 10:42 AM
Moonset: 5:53 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.8%
Moon Transit: 10:42 AM
Moonset: 5:53 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.8%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM10:12 AM - 12:42 AM
Minor Periods
5:23 PM - 6:53 PM2:50 AM - 4:20 AM
Action Rating: 3 out of 5
Friday, September 19, 2025
Weather Forecast
Conditions: Moderate rain
Average Temperature: 71.5°F
Average Humidity: 77%
Average Temperature: 71.5°F
Average Humidity: 77%
Chance of Rain: 88%
Wind: 9.2 mph
UV Index: 0
Wind: 9.2 mph
UV Index: 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
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3
Astronomical
Sunrise: 6:51 AM
Sun Transit: 1:00 PM
Sunset: 7:07 PM
Daylight: 12 hrs 16 mins
Sun Transit: 1:00 PM
Sunset: 7:07 PM
Daylight: 12 hrs 16 mins
Moonrise: 4:29 AM
Moon Transit: 11:29 AM
Moonset: 6:17 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.8%
Moon Transit: 11:29 AM
Moonset: 6:17 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.8%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM10:59 AM - 1:29 PM
Minor Periods
5:47 PM - 7:17 PM3:59 AM - 5:29 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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