Water Temperature of the Mississippi River in Keokuk, IA

Current Water Temperature

53.8°F

Measurement Time: Friday, October 31, 2025, 2:45 AM 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

36.3°F
Sunny
Conditions: Sunny
Humidity: 100%
Feels Like: 31.2°F
Wind: WNW 6.3 mph
Wind Gusts: 13.2 mph
Pressure: 29.95 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 6 mi
UV Index: 0

Five Day Weather Forecast

Sunny
Fri
H: 59°F
L: 34°F
Cloudy
Sat
H: 51°F
L: 36°F
Sunny
Sun
H: 56°F
L: 38°F
Sunny
Mon
H: 61°F
L: 37°F
Sunny
Tue
H: 58°F
L: 42°F

Air Quality

PM2.5: 3.45 μg/m3
PM10: 3.55 μg/m3
Carbon Monoxide: 135.85 μg/m3
Nitrogen Dioxide: 2.85 μg/m3
Sulphur Dioxide: 1.65 μg/m3
Ozone: 65 μg/m3

Astronomical

Sunrise: 7:34 AM
Sun Transit: 12:49 AM
Sunset: 6:03 PM
Daylight: 10 hrs 29 mins
Moonrise: 3:30 PM
Moon Transit: 9:02 PM
Moonset: 1:35 AM
Moon Phase: First Quarter
Moon Illumination: 74.1%

Best Times for Fishing or Hunting

Major Periods

7:58 AM - 10:28 AM
8:32 PM - 11:02 PM

Minor Periods

3:00 PM - 4:30 PM
1:05 AM - 2:35 AM

Action Rating: 3 out of 5

Frost Advisory issued October 30 at 1:47PM CDT until October 31 at 8:00AM CDT by NWS St Louis MO

Effective: Thu October 30, 2025, 1:47 PM
Expires: Fri October 31, 2025, 5:00 AM

* WHAT...Temperatures as low as 32 will result in frost formation. * WHERE...Portions of west central Illinois and central, east central, northeast, and southeast Missouri. * WHEN...From 3 AM to 8 AM CDT Friday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.


Frost Advisory issued October 31 at 2:16AM CDT until October 31 at 8:00AM CDT by NWS St Louis MO

Effective: Fri October 31, 2025, 2:16 AM
Expires: Fri October 31, 2025, 5:30 PM

* WHAT...For the Frost Advisory, temperatures as low as 30 will result in frost formation. For the Freeze Watch, sub-freezing temperatures as low as 30 possible. * WHERE...Portions of west central Illinois and central, east central, northeast, and southeast Missouri. * WHEN...For the Frost Advisory, until 8 AM CDT this morning. For the Freeze Watch, from late Saturday night through Sunday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.


Freeze Watch issued October 31 at 2:16AM CDT until November 2 at 7:00AM CST by NWS St Louis MO

Effective: Fri October 31, 2025, 2:16 AM
Expires: Fri October 31, 2025, 5:30 PM

* WHAT...For the Frost Advisory, temperatures as low as 30 will result in frost formation. For the Freeze Watch, sub-freezing temperatures as low as 30 possible. * WHERE...Portions of west central Illinois and central, east central, northeast, and southeast Missouri. * WHEN...For the Frost Advisory, until 8 AM CDT this morning. For the Freeze Watch, from late Saturday night through Sunday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.


Friday, October 31, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 46.3°F
Average Humidity: 71%
Chance of Rain: 0%
Wind: 16.8 mph
UV Index: 0.6

Air Quality

AQI: 1 - Good
PM2.5: 5.8 μg/m3
PM10: 5.87 μg/m3
Carbon Monoxide: 160.05 μg/m3
Nitrogen Dioxide: 6.75 μg/m3
Sulphur Dioxide: 1.77 μg/m3
Ozone: 50.56 μg/m3

Astronomical

Sunrise: 7:34 AM
Sun Transit: 12:49 AM
Sunset: 6:03 PM
Daylight: 10 hrs 29 mins
Moonrise: 3:30 PM
Moon Transit: 9:02 PM
Moonset: 1:35 AM
Moon Phase: First Quarter
Moon Illumination: 74.1%

Best Times for Fishing or Hunting

Major Periods

7:58 AM - 10:28 AM
8:32 PM - 11:02 PM

Minor Periods

3:00 PM - 4:30 PM
1:05 AM - 2:35 AM

Action Rating: 3 out of 5

Saturday, November 1, 2025

Weather Forecast

Conditions: Cloudy
Average Temperature: 43.3°F
Average Humidity: 70%
Chance of Rain: 0%
Wind: 10.3 mph
UV Index: 0.5

Air Quality

AQI: 1 - Good
PM2.5: 3.75 μg/m3
PM10: 3.76 μg/m3
Carbon Monoxide: 140.57 μg/m3
Nitrogen Dioxide: 5.03 μg/m3
Sulphur Dioxide: 1.43 μg/m3
Ozone: 45.92 μg/m3

Astronomical

Sunrise: 7:35 AM
Sun Transit: 12:49 AM
Sunset: 6:02 PM
Daylight: 10 hrs 26 mins
Moonrise: 3:54 PM
Moon Transit: 9:50 PM
Moonset: 2:46 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 83.4%

Best Times for Fishing or Hunting

Major Periods

8:45 AM - 11:15 AM
9:20 PM - 11:50 PM

Minor Periods

3:24 PM - 4:54 PM
2:16 AM - 3:46 AM

Action Rating: 2 out of 5

Sunday, November 2, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 44.2°F
Average Humidity: 57%
Chance of Rain: 0%
Wind: 7.4 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 3.54 μg/m3
PM10: 3.55 μg/m3
Carbon Monoxide: 164.93 μg/m3
Nitrogen Dioxide: 6.16 μg/m3
Sulphur Dioxide: 1.27 μg/m3
Ozone: 41.46 μg/m3

Astronomical

Sunrise: 7:37 AM
Sun Transit: 12:49 AM
Sunset: 6:01 PM
Daylight: 10 hrs 24 mins
Moonrise: 4:18 PM
Moon Transit: 11:31 AM
Moonset: 3:58 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 90.9%

Best Times for Fishing or Hunting

Major Periods

11:01 AM - 1:31 PM
11:01 AM - 1:31 PM

Minor Periods

3:48 PM - 5:18 PM
3:28 AM - 4:58 AM

Action Rating: 2 out of 5

Monday, November 3, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 48°F
Average Humidity: 54%
Chance of Rain: 0%
Wind: 15.7 mph
UV Index: 3

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: 7:38 AM
Sun Transit: 12:49 AM
Sunset: 6:00 PM
Daylight: 10 hrs 22 mins
Moonrise: 4:43 PM
Moon Transit: 11:29 PM
Moonset: 5:13 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 96.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

4:13 PM - 5:43 PM
4:43 AM - 6:13 AM

Action Rating: 3 out of 5

Tuesday, November 4, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 49.2°F
Average Humidity: 41%
Chance of Rain: 0%
Wind: 20.4 mph
UV Index: 3

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: 7:39 AM
Sun Transit: 12:49 AM
Sunset: 5:58 PM
Daylight: 10 hrs 20 mins
Moonrise: 5:12 PM
Moon Transit: 12:00 AM
Moonset: 6:32 AM
Moon Phase: Full
Moon Illumination: 99.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:15 AM - 1:45 PM

Minor Periods

4:42 PM - 6:12 PM
6:02 AM - 7:32 AM

Action Rating: 5 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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