Water Temperature of the Mississippi River in Keokuk, IA

Current Water Temperature

79.9°F

Measurement Time: Saturday, September 12, 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

74°F
Partly Cloudy
Partly Cloudy
83%
N 5 mph
69°F

Weather Forecast

Partly Cloudy
Tonight
64°F - Partly Cloudy
Chance Showers And Thunderstorms
Sunday
74°F - Chance Showers And Thunderstorms
Chance Rain Showers
Sunday Night
59°F - Chance Rain Showers
Chance Rain Showers
Monday
80°F - Chance Rain Showers
Mostly Clear then Slight Chance Rain Showers
Monday Night
71°F - Mostly Clear then Slight Chance Rain Showers
Showers And Thunderstorms Likely
Tuesday
88°F - Showers And Thunderstorms Likely
Showers And Thunderstorms
Tuesday Night
66°F - Showers And Thunderstorms
Showers And Thunderstorms
Wednesday
82°F - Showers And Thunderstorms
Chance Showers And Thunderstorms
Wednesday Night
69°F - Chance Showers And Thunderstorms
Showers And Thunderstorms Likely
Thursday
80°F - Showers And Thunderstorms Likely
Chance Rain Showers
Thursday Night
64°F - Chance Rain Showers
Chance Rain Showers
Friday
79°F - Chance Rain Showers
Chance Showers And Thunderstorms
Friday Night
61°F - Chance Showers And Thunderstorms
Chance Rain Showers
Saturday
74°F - Chance Rain Showers

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

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

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: 6:49 AM
Sun Transit: 1:00 PM
Sunset: 7:11 PM
Daylight: 12 hrs 22 mins
Moonrise: 1:48 PM
Moon Transit: 6:11 PM
Moonset: 10:33 PM
Moon Phase: Waxing Crescent
Moon Illumination: 32.1%

Best Times for Fishing or Hunting

Major Periods

5:04 AM - 7:34 AM
5:41 PM - 8:11 PM

Minor Periods

10:03 PM - 11:33 PM
1:18 PM - 2:48 PM

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: 6:49 AM
Sun Transit: 1:00 PM
Sunset: 7:11 PM
Daylight: 12 hrs 22 mins
Moonrise: 1:48 PM
Moon Transit: 6:11 PM
Moonset: 10:33 PM
Moon Phase: Waxing Crescent
Moon Illumination: 32.1%

Best Times for Fishing or Hunting

Major Periods

5:04 AM - 7:34 AM
5:41 PM - 8:11 PM

Minor Periods

10:03 PM - 11:33 PM
1:18 PM - 2:48 PM

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: 6:49 AM
Sun Transit: 1:00 PM
Sunset: 7:09 PM
Daylight: 12 hrs 19 mins
Moonrise: 2:43 PM
Moon Transit: 7:02 PM
Moonset: 11:23 PM
Moon Phase: First Quarter
Moon Illumination: 43.0%

Best Times for Fishing or Hunting

Major Periods

5:55 AM - 8:25 AM
6:32 PM - 9:02 PM

Minor Periods

12:00 AM - 12:00 AM
2:13 PM - 3:43 PM

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: 6:49 AM
Sun Transit: 1:00 PM
Sunset: 7:09 PM
Daylight: 12 hrs 19 mins
Moonrise: 2:43 PM
Moon Transit: 7:02 PM
Moonset: 11:23 PM
Moon Phase: First Quarter
Moon Illumination: 43.0%

Best Times for Fishing or Hunting

Major Periods

5:55 AM - 8:25 AM
6:32 PM - 9:02 PM

Minor Periods

12:00 AM - 12:00 AM
2:13 PM - 3:43 PM

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: 6:50 AM
Sun Transit: 1:00 PM
Sunset: 7:07 PM
Daylight: 12 hrs 17 mins
Moonrise: 3:30 PM
Moon Transit: 7:54 PM
Moonset: 12:23 AM
Moon Phase: First Quarter
Moon Illumination: 54.3%

Best Times for Fishing or Hunting

Major Periods

6:47 AM - 9:17 AM
7:24 PM - 9:54 PM

Minor Periods

3:00 PM - 4:30 PM
12:00 AM - 12:00 AM

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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