Water Temperature of the Mississippi River in Keokuk, IA

Current Water Temperature

82.0°F

Measurement Time: Thursday, September 3, 2026, 1:45 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

92°F
Mostly Clear
Mostly Clear
53%
S 5 mph
72°F

Weather Forecast

Mostly Clear
Tonight
76°F - Mostly Clear
Sunny
Friday
96°F - Sunny
Partly Cloudy then Slight Chance Showers And Thunderstorms
Friday Night
73°F - Partly Cloudy then Slight Chance Showers And Thunderstorms
Slight Chance Showers And Thunderstorms then Sunny
Saturday
95°F - Slight Chance Showers And Thunderstorms then Sunny
Mostly Clear
Saturday Night
71°F - Mostly Clear
Sunny
Sunday
89°F - Sunny
Mostly Clear
Sunday Night
67°F - Mostly Clear
Mostly Sunny
Labor Day
89°F - Mostly Sunny
Mostly Clear
Monday Night
69°F - Mostly Clear
Mostly Sunny
Tuesday
96°F - Mostly Sunny
Mostly Clear then Slight Chance Showers And Thunderstorms
Tuesday Night
75°F - Mostly Clear then Slight Chance Showers And Thunderstorms
Slight Chance Showers And Thunderstorms
Wednesday
96°F - Slight Chance Showers And Thunderstorms
Partly Cloudy then Chance Rain Showers
Wednesday Night
72°F - Partly Cloudy then Chance Rain Showers
Chance Rain Showers
Thursday
89°F - Chance Rain Showers

Astronomical

Sunrise: 6:35 AM
Sun Transit: 1:04 PM
Sunset: 7:34 PM
Daylight: 12 hrs 59 mins
Moonrise: 10:58 PM
Moon Transit: 6:00 AM
Moonset: 1:56 PM
Moon Phase: Last Quarter
Moon Illumination: 49.2%

Best Times for Fishing or Hunting

Major Periods

5:30 AM - 8:00 AM
5:47 PM - 8:17 PM

Minor Periods

10:28 PM - 11:58 PM
1:26 PM - 2:56 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: 6:35 AM
Sun Transit: 1:04 PM
Sunset: 7:34 PM
Daylight: 12 hrs 59 mins
Moonrise: 10:58 PM
Moon Transit: 6:00 AM
Moonset: 1:56 PM
Moon Phase: Last Quarter
Moon Illumination: 49.2%

Best Times for Fishing or Hunting

Major Periods

5:30 AM - 8:00 AM
5:47 PM - 8:17 PM

Minor Periods

10:28 PM - 11:58 PM
1:26 PM - 2:56 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: 6:36 AM
Sun Transit: 1:04 PM
Sunset: 7:32 PM
Daylight: 12 hrs 56 mins
Moonrise: 11:55 PM
Moon Transit: 7:00 AM
Moonset: 3:06 PM
Moon Phase: Last Quarter
Moon Illumination: 38.0%

Best Times for Fishing or Hunting

Major Periods

6:30 AM - 9:00 AM
6:49 PM - 9:19 PM

Minor Periods

12:00 AM - 12:00 AM
2:36 PM - 4:06 PM

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: 6:36 AM
Sun Transit: 1:04 PM
Sunset: 7:32 PM
Daylight: 12 hrs 56 mins
Moonrise: 11:55 PM
Moon Transit: 7:00 AM
Moonset: 3:06 PM
Moon Phase: Last Quarter
Moon Illumination: 38.0%

Best Times for Fishing or Hunting

Major Periods

6:30 AM - 9:00 AM
6:49 PM - 9:19 PM

Minor Periods

12:00 AM - 12:00 AM
2:36 PM - 4:06 PM

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: 6:37 AM
Sun Transit: 1:04 PM
Sunset: 7:30 PM
Daylight: 12 hrs 53 mins
Moonrise: 12:55 AM
Moon Transit: 8:02 AM
Moonset: 4:09 PM
Moon Phase: Last Quarter
Moon Illumination: 27.4%

Best Times for Fishing or Hunting

Major Periods

7:32 AM - 10:02 AM
7:52 PM - 10:22 PM

Minor Periods

3:39 PM - 5:09 PM
12:00 AM - 12:00 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: 6:37 AM
Sun Transit: 1:04 PM
Sunset: 7:30 PM
Daylight: 12 hrs 53 mins
Moonrise: 12:55 AM
Moon Transit: 8:02 AM
Moonset: 4:09 PM
Moon Phase: Last Quarter
Moon Illumination: 27.4%

Best Times for Fishing or Hunting

Major Periods

7:32 AM - 10:02 AM
7:52 PM - 10:22 PM

Minor Periods

3:39 PM - 5:09 PM
12:00 AM - 12:00 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: 6:38 AM
Sun Transit: 1:03 PM
Sunset: 7:29 PM
Daylight: 12 hrs 51 mins
Moonrise: 1:03 AM
Moon Transit: 9:05 AM
Moonset: 5:00 PM
Moon Phase: Last Quarter
Moon Illumination: 18.0%

Best Times for Fishing or Hunting

Major Periods

8:35 AM - 11:05 AM
8:54 PM - 11:24 PM

Minor Periods

4:30 PM - 6:00 PM
12:33 AM - 2:03 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: 6:38 AM
Sun Transit: 1:03 PM
Sunset: 7:29 PM
Daylight: 12 hrs 51 mins
Moonrise: 1:03 AM
Moon Transit: 9:05 AM
Moonset: 5:00 PM
Moon Phase: Last Quarter
Moon Illumination: 18.0%

Best Times for Fishing or Hunting

Major Periods

8:35 AM - 11:05 AM
8:54 PM - 11:24 PM

Minor Periods

4:30 PM - 6:00 PM
12:33 AM - 2:03 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: 6:39 AM
Sun Transit: 1:03 PM
Sunset: 7:27 PM
Daylight: 12 hrs 48 mins
Moonrise: 2:18 AM
Moon Transit: 10:05 AM
Moonset: 5:41 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:35 AM - 12:05 AM

Minor Periods

5:11 PM - 6:41 PM
1:48 AM - 3:18 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: 6:39 AM
Sun Transit: 1:03 PM
Sunset: 7:27 PM
Daylight: 12 hrs 48 mins
Moonrise: 2:18 AM
Moon Transit: 10:05 AM
Moonset: 5:41 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:35 AM - 12:05 AM

Minor Periods

5:11 PM - 6:41 PM
1:48 AM - 3:18 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: 6:40 AM
Sun Transit: 1:03 PM
Sunset: 7:26 PM
Daylight: 12 hrs 46 mins
Moonrise: 3:34 AM
Moon Transit: 11:01 AM
Moonset: 6:14 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:31 AM - 1:01 PM

Minor Periods

5:44 PM - 7:14 PM
3:04 AM - 4:34 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: 6:40 AM
Sun Transit: 1:03 PM
Sunset: 7:26 PM
Daylight: 12 hrs 46 mins
Moonrise: 3:34 AM
Moon Transit: 11:01 AM
Moonset: 6:14 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:31 AM - 1:01 PM

Minor Periods

5:44 PM - 7:14 PM
3:04 AM - 4:34 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: 6:41 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

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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