Water Temperature of the Mississippi River in Keokuk, IA

Current Water Temperature

81.0°F

Measurement Time: Wednesday, September 9, 2026, 2:45 PM CDT

Temperature Locations

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Local Points of Interest

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

Mississippi River

Station Name: Mississippi River at Keokuk, IA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 505 feet

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 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 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

75°F
Slight Chance Rain Showers
Slight Chance Rain Showers
86%
0 mph
71°F

Weather Forecast

Chance Showers And Thunderstorms
Tonight
68°F - Chance Showers And Thunderstorms
Patchy Fog then Mostly Cloudy
Thursday
80°F - Patchy Fog then Mostly Cloudy
Mostly Clear
Thursday Night
61°F - Mostly Clear
Sunny
Friday
83°F - Sunny
Mostly Clear
Friday Night
66°F - Mostly Clear
Chance Rain Showers then Slight Chance Showers And Thunderstorms
Saturday
85°F - Chance Rain Showers then Slight Chance Showers And Thunderstorms
Slight Chance Showers And Thunderstorms
Saturday Night
65°F - Slight Chance Showers And Thunderstorms
Slight Chance Rain Showers
Sunday
85°F - Slight Chance Rain Showers
Mostly Cloudy
Sunday Night
70°F - Mostly Cloudy
Mostly Sunny then Slight Chance Showers And Thunderstorms
Monday
91°F - Mostly Sunny then Slight Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Monday Night
67°F - Chance Showers And Thunderstorms
Showers And Thunderstorms Likely
Tuesday
79°F - Showers And Thunderstorms Likely
Chance Rain Showers
Tuesday Night
63°F - Chance Rain Showers
Chance Rain Showers
Wednesday
80°F - Chance Rain Showers

Astronomical

Sunrise: 6:41 AM
Sun Transit: 1:02 PM
Sunset: 7:24 PM
Daylight: 12 hrs 43 mins
Moonrise: 4:51 AM
Moon Transit: 11:52 AM
Moonset: 6:42 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:22 AM - 1:52 PM

Minor Periods

6:12 PM - 7:42 PM
4:21 AM - 5:51 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:41 AM
Sun Transit: 1:02 PM
Sunset: 7:24 PM
Daylight: 12 hrs 43 mins
Moonrise: 4:51 AM
Moon Transit: 11:52 AM
Moonset: 6:42 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:22 AM - 1:52 PM

Minor Periods

6:12 PM - 7:42 PM
4:21 AM - 5:51 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:42 AM
Sun Transit: 1:02 PM
Sunset: 7:22 PM
Daylight: 12 hrs 40 mins
Moonrise: 6:04 AM
Moon Transit: 12:41 AM
Moonset: 7:06 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:11 AM - 2:41 PM

Minor Periods

6:36 PM - 8:06 PM
5:34 AM - 7:04 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:42 AM
Sun Transit: 1:02 PM
Sunset: 7:22 PM
Daylight: 12 hrs 40 mins
Moonrise: 6:04 AM
Moon Transit: 12:41 AM
Moonset: 7:06 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:11 AM - 2:41 PM

Minor Periods

6:36 PM - 8:06 PM
5:34 AM - 7:04 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:43 AM
Sun Transit: 1:02 PM
Sunset: 7:21 PM
Daylight: 12 hrs 38 mins
Moonrise: 7:14 AM
Moon Transit: 1:27 PM
Moonset: 7:29 PM
Moon Phase: New
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

12:23 AM - 2:53 AM
12:57 AM - 3:27 PM

Minor Periods

6:59 PM - 8:29 PM
6:44 AM - 8:14 AM

Action Rating: 5 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:43 AM
Sun Transit: 1:02 PM
Sunset: 7:21 PM
Daylight: 12 hrs 38 mins
Moonrise: 7:14 AM
Moon Transit: 1:27 PM
Moonset: 7:29 PM
Moon Phase: New
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

12:23 AM - 2:53 AM
12:57 AM - 3:27 PM

Minor Periods

6:59 PM - 8:29 PM
6:44 AM - 8:14 AM

Action Rating: 5 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:44 AM
Sun Transit: 1:01 PM
Sunset: 7:19 PM
Daylight: 12 hrs 35 mins
Moonrise: 8:23 AM
Moon Transit: 2:12 PM
Moonset: 7:51 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

1:08 AM - 3:38 AM
1:42 PM - 4:12 PM

Minor Periods

7:21 PM - 8:51 PM
7:53 AM - 9:23 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:44 AM
Sun Transit: 1:01 PM
Sunset: 7:19 PM
Daylight: 12 hrs 35 mins
Moonrise: 8:23 AM
Moon Transit: 2:12 PM
Moonset: 7:51 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

1:08 AM - 3:38 AM
1:42 PM - 4:12 PM

Minor Periods

7:21 PM - 8:51 PM
7:53 AM - 9:23 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:45 AM
Sun Transit: 1:01 PM
Sunset: 7:17 PM
Daylight: 12 hrs 33 mins
Moonrise: 9:30 AM
Moon Transit: 2:57 PM
Moonset: 8:16 PM
Moon Phase: New
Moon Illumination: 2.2%

Best Times for Fishing or Hunting

Major Periods

1:53 AM - 4:23 AM
2:27 PM - 4:57 PM

Minor Periods

7:46 PM - 9:16 PM
9:00 AM - 10:30 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:45 AM
Sun Transit: 1:01 PM
Sunset: 7:17 PM
Daylight: 12 hrs 33 mins
Moonrise: 9:30 AM
Moon Transit: 2:57 PM
Moonset: 8:16 PM
Moon Phase: New
Moon Illumination: 2.2%

Best Times for Fishing or Hunting

Major Periods

1:53 AM - 4:23 AM
2:27 PM - 4:57 PM

Minor Periods

7:46 PM - 9:16 PM
9:00 AM - 10:30 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:46 AM
Sun Transit: 1:00 PM
Sunset: 7:16 PM
Daylight: 12 hrs 30 mins
Moonrise: 10:37 AM
Moon Transit: 3:43 PM
Moonset: 8:42 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.7%

Best Times for Fishing or Hunting

Major Periods

2:39 AM - 5:09 AM
3:13 PM - 5:43 PM

Minor Periods

8:12 PM - 9:42 PM
10:07 AM - 11:37 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:46 AM
Sun Transit: 1:00 PM
Sunset: 7:16 PM
Daylight: 12 hrs 30 mins
Moonrise: 10:37 AM
Moon Transit: 3:43 PM
Moonset: 8:42 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.7%

Best Times for Fishing or Hunting

Major Periods

2:39 AM - 5:09 AM
3:13 PM - 5:43 PM

Minor Periods

8:12 PM - 9:42 PM
10:07 AM - 11:37 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:47 AM
Sun Transit: 1:00 PM
Sunset: 7:14 PM
Daylight: 12 hrs 27 mins
Moonrise: 11:43 AM
Moon Transit: 4:31 PM
Moonset: 9:13 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.4%

Best Times for Fishing or Hunting

Major Periods

3:25 AM - 5:55 AM
4:01 PM - 6:31 PM

Minor Periods

8:43 PM - 10:13 PM
11:13 AM - 12:43 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:47 AM
Sun Transit: 1:00 PM
Sunset: 7:14 PM
Daylight: 12 hrs 27 mins
Moonrise: 11:43 AM
Moon Transit: 4:31 PM
Moonset: 9:13 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.4%

Best Times for Fishing or Hunting

Major Periods

3:25 AM - 5:55 AM
4:01 PM - 6:31 PM

Minor Periods

8:43 PM - 10:13 PM
11:13 AM - 12:43 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:48 AM
Sun Transit: 1:00 PM
Sunset: 7:12 PM
Daylight: 12 hrs 25 mins
Moonrise: 12:48 AM
Moon Transit: 5:20 PM
Moonset: 9:49 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.0%

Best Times for Fishing or Hunting

Major Periods

4:14 AM - 6:44 AM
4:50 PM - 7:20 PM

Minor Periods

9:19 PM - 10:49 PM
12:18 AM - 1:48 PM

Action Rating: 4 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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