Water Temperature of the Mississippi River in Keokuk, IA

Current Water Temperature

77.4°F

Measurement Time: Monday, August 25, 2025, 5:45 PM CDT

Temperature Locations

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Local Points of Interest

Hamilton, IL; Montebello State Park; Victory Park; Lock and Dam 19

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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

57.4°F
Overcast
Conditions: Overcast
Humidity: 88%
Feels Like: 56.2°F
Wind: NNE 6.7 mph
Wind Gusts: 14.1 mph
Pressure: 30.2 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Sunny
Mon
H: 74°F
L: 48°F
Sunny
Tue
H: 79°F
L: 47°F
Sunny
Wed
H: 81°F
L: 51°F
Sunny
Thu
H: 87°F
L: 54°F
Partly Cloudy
Fri
H: 81°F
L: 57°F

Air Quality

AQI: 1 - Good
PM2.5: 5.74 μg/m3
PM10: 5.92 μg/m3
Carbon Monoxide: 286.75 μg/m3
Nitrogen Dioxide: 17.58 μg/m3
Sulphur Dioxide: 0.93 μg/m3
Ozone: 41 μg/m3

Astronomical

Sunrise: 6:27 AM
Sun Transit: 1:07 PM
Sunset: 7:48 PM
Daylight: 13 hrs 21 mins
Moonrise: 8:51 AM
Moon Transit: 2:56 PM
Moonset: 8:53 PM
Moon Phase: New
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

1:55 AM - 4:25 AM
2:26 PM - 4:56 PM

Minor Periods

8:23 PM - 9:53 PM
8:21 AM - 9:51 AM

Action Rating: 3 out of 5

Flood Warning issued August 25 at 7:12PM CDT until August 27 at 3:00AM CDT by NWS Quad Cities IA IL

Effective: Mon August 25, 2025, 7:12 PM
Expires: Tue August 26, 2025, 7:15 PM

...The Flood Warning is extended for the following rivers in Iowa... Cedar River near Conesville affecting Louisa and Muscatine Counties. * WHAT...Minor flooding is forecast. * WHERE...Cedar River near Conesville. * WHEN...From late tonight to early Wednesday morning. * IMPACTS...At 13.0 feet, Water affects Edgewater Road and 245th Street near Conesville. * ADDITIONAL DETAILS... - At 7:00 PM CDT Monday the stage was 12.8 feet. - Forecast...The river is expected to rise to a crest of 13.0 feet just after midnight tonight. It will then fall below flood stage tomorrow evening. - Flood stage is 13.0 feet.

Stay tuned to further developments by listening to your local radio, television, or NOAA Weather Radio for further information. The next statement will be issued by Tuesday evening at 715 PM CDT.
Monday, August 25, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 61.4°F
Average Humidity: 70%
Chance of Rain: 0%
Wind: 12.1 mph
UV Index: 1.9

Air Quality

AQI: 1 - Good
PM2.5: 7.26 μg/m3
PM10: 7.42 μg/m3
Carbon Monoxide: 282.83 μg/m3
Nitrogen Dioxide: 7.88 μg/m3
Sulphur Dioxide: 0.67 μg/m3
Ozone: 65.28 μg/m3

Astronomical

Sunrise: 6:27 AM
Sun Transit: 1:07 PM
Sunset: 7:48 PM
Daylight: 13 hrs 21 mins
Moonrise: 8:51 AM
Moon Transit: 2:56 PM
Moonset: 8:53 PM
Moon Phase: New
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

1:55 AM - 4:25 AM
2:26 PM - 4:56 PM

Minor Periods

8:23 PM - 9:53 PM
8:21 AM - 9:51 AM

Action Rating: 3 out of 5

Tuesday, August 26, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 63.8°F
Average Humidity: 66%
Chance of Rain: 0%
Wind: 7.2 mph
UV Index: 1.8

Air Quality

AQI: 1 - Good
PM2.5: 6.37 μg/m3
PM10: 6.53 μg/m3
Carbon Monoxide: 284.97 μg/m3
Nitrogen Dioxide: 8.86 μg/m3
Sulphur Dioxide: 0.93 μg/m3
Ozone: 69.56 μg/m3

Astronomical

Sunrise: 6:28 AM
Sun Transit: 1:07 PM
Sunset: 7:46 PM
Daylight: 13 hrs 18 mins
Moonrise: 9:53 AM
Moon Transit: 3:37 PM
Moonset: 9:13 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.1%

Best Times for Fishing or Hunting

Major Periods

2:35 AM - 5:05 AM
3:07 PM - 5:37 PM

Minor Periods

8:43 PM - 10:13 PM
9:23 AM - 10:53 AM

Action Rating: 2 out of 5

Wednesday, August 27, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 66.2°F
Average Humidity: 66%
Chance of Rain: 0%
Wind: 11.9 mph
UV Index: 1.8

Air Quality

AQI: 1 - Good
PM2.5: 6.08 μg/m3
PM10: 6.22 μg/m3
Carbon Monoxide: 293.41 μg/m3
Nitrogen Dioxide: 11.31 μg/m3
Sulphur Dioxide: 1.27 μg/m3
Ozone: 78.6 μg/m3

Astronomical

Sunrise: 6:29 AM
Sun Transit: 1:06 PM
Sunset: 7:45 PM
Daylight: 13 hrs 16 mins
Moonrise: 10:55 AM
Moon Transit: 4:18 PM
Moonset: 9:34 PM
Moon Phase: Waxing Crescent
Moon Illumination: 12.6%

Best Times for Fishing or Hunting

Major Periods

3:16 AM - 5:46 AM
3:48 PM - 6:18 PM

Minor Periods

9:04 PM - 10:34 PM
10:25 AM - 11:55 AM

Action Rating: 2 out of 5

Thursday, August 28, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 70.4°F
Average Humidity: 68%
Chance of Rain: 0%
Wind: 11.2 mph
UV Index: 1.8

Air Quality

AQI: 1 - Good
PM2.5: 8.07 μg/m3
PM10: 8.35 μg/m3
Carbon Monoxide: 325.16 μg/m3
Nitrogen Dioxide: 10.32 μg/m3
Sulphur Dioxide: 1.64 μg/m3
Ozone: 86.52 μg/m3

Astronomical

Sunrise: 6:30 AM
Sun Transit: 1:06 PM
Sunset: 7:43 PM
Daylight: 13 hrs 13 mins
Moonrise: 11:57 AM
Moon Transit: 5:01 PM
Moonset: 9:59 PM
Moon Phase: Waxing Crescent
Moon Illumination: 21.1%

Best Times for Fishing or Hunting

Major Periods

3:58 AM - 6:28 AM
4:31 PM - 7:01 PM

Minor Periods

9:29 PM - 10:59 PM
11:27 AM - 12:57 AM

Action Rating: 3 out of 5

Friday, August 29, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 69.5°F
Average Humidity: 63%
Chance of Rain: 0%
Wind: 11.9 mph
UV Index: 1.8

Air Quality

AQI: 1 - Good
PM2.5: 7.47 μg/m3
PM10: 7.81 μg/m3
Carbon Monoxide: 343.82 μg/m3
Nitrogen Dioxide: 11.81 μg/m3
Sulphur Dioxide: 1.72 μg/m3
Ozone: 75.77 μg/m3

Astronomical

Sunrise: 6:31 AM
Sun Transit: 1:06 PM
Sunset: 7:41 PM
Daylight: 13 hrs 11 mins
Moonrise: 1:00 PM
Moon Transit: 5:46 PM
Moonset: 10:27 PM
Moon Phase: Waxing Crescent
Moon Illumination: 31.0%

Best Times for Fishing or Hunting

Major Periods

4:42 AM - 7:12 AM
5:16 PM - 7:46 PM

Minor Periods

9:57 PM - 11:27 PM
12:30 AM - 2:00 PM

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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