Water Temperature of the Mississippi River in Keokuk, IA

Current Water Temperature

83.3°F

Measurement Time: Wednesday, July 29, 2026, 5:45 AM 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

88.5°F
Sunny
Sunny
89.4°F
90.5°F
43%
E 8.1 mph
9.3 mph
88.5°F
63.2°F
0 in
0%
6 mi
1015 mbar
6.2

Five Day Weather Forecast

Sunny
Wed
H: 95°F
L: 68°F
Sunny
Thu
H: 87°F
L: 62°F
Light rain shower
Fri
H: 76°F
L: 66°F
Patchy rain nearby
Sat
H: 79°F
L: 63°F
Sunny
Sun
H: 85°F
L: 64°F

Air Quality

AQI: 1 - Good
PM2.5: 7.6 μg/m3
PM10: 8 μg/m3
Carbon Monoxide: 136 μg/m3
Nitrogen Dioxide: 2.3 μg/m3
Sulphur Dioxide: 1.4 μg/m3
Ozone: 90 μg/m3

Astronomical

Sunrise: 6:00 AM
Sun Transit: 1:12 PM
Sunset: 8:23 PM
Daylight: 14 hrs 23 mins
Moonrise: 8:43 PM
Moon Transit: 12:57 AM
Moonset: 5:49 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:27 AM - 2:57 AM
12:39 AM - 3:09 PM

Minor Periods

8:13 PM - 9:43 PM
5:19 AM - 6:49 AM

Action Rating: 4 out of 5

Wednesday, July 29, 2026

Weather Forecast

Sunny
94.5°F
67.6°F
80.6°F
57%
0 in
3%
0%
9.6 mph
8.5


Air Quality

AQI: 1 - Good
PM2.5: 9.44 μg/m3
PM10: 9.95 μg/m3
Carbon Monoxide: 148.58 μg/m3
Nitrogen Dioxide: 5.18 μg/m3
Sulphur Dioxide: 0.96 μg/m3
Ozone: 77.63 μg/m3

Astronomical

Sunrise: 6:00 AM
Sun Transit: 1:12 PM
Sunset: 8:23 PM
Daylight: 14 hrs 23 mins
Moonrise: 8:43 PM
Moon Transit: 12:57 AM
Moonset: 5:49 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:27 AM - 2:57 AM
12:39 AM - 3:09 PM

Minor Periods

8:13 PM - 9:43 PM
5:19 AM - 6:49 AM

Action Rating: 4 out of 5

Thursday, July 30, 2026

Weather Forecast

Sunny
86.7°F
61.7°F
74°F
65%
0 in
6%
0%
12.1 mph
8.5


Air Quality

AQI: 1 - Good
PM2.5: 3.81 μg/m3
PM10: 3.9 μg/m3
Carbon Monoxide: 141.92 μg/m3
Nitrogen Dioxide: 5.84 μg/m3
Sulphur Dioxide: 1.26 μg/m3
Ozone: 80.13 μg/m3

Astronomical

Sunrise: 6:01 AM
Sun Transit: 1:11 PM
Sunset: 8:22 PM
Daylight: 14 hrs 21 mins
Moonrise: 9:08 PM
Moon Transit: 1:44 AM
Moonset: 6:54 AM
Moon Phase: Full
Moon Illumination: 97.1%

Best Times for Fishing or Hunting

Major Periods

1:14 AM - 3:44 AM
1:25 PM - 3:55 PM

Minor Periods

8:38 PM - 10:08 PM
6:24 AM - 7:54 AM

Action Rating: 5 out of 5

Friday, July 31, 2026

Weather Forecast

Light rain shower
76.1°F
66.2°F
70.4°F
89%
1.36 in
90%
0%
14.1 mph
7.5


Air Quality

AQI: 1 - Good
PM2.5: 4.4 μg/m3
PM10: 4.57 μg/m3
Carbon Monoxide: 135.46 μg/m3
Nitrogen Dioxide: 4.87 μg/m3
Sulphur Dioxide: 1.1 μg/m3
Ozone: 73.5 μg/m3

Astronomical

Sunrise: 6:02 AM
Sun Transit: 1:11 PM
Sunset: 8:21 PM
Daylight: 14 hrs 19 mins
Moonrise: 9:31 PM
Moon Transit: 2:28 AM
Moonset: 7:59 AM
Moon Phase: Full
Moon Illumination: 92.0%

Best Times for Fishing or Hunting

Major Periods

1:58 AM - 4:28 AM
2:09 PM - 4:39 PM

Minor Periods

9:01 PM - 10:31 PM
7:29 AM - 8:59 AM

Action Rating: 3 out of 5

Saturday, August 1, 2026

Weather Forecast

Patchy rain nearby
78.5°F
63.3°F
69.4°F
86%
0.14 in
77%
0%
16.6 mph
7.5


Air Quality

AQI: 1 - Good
PM2.5: 1.8 μg/m3
PM10: 1.83 μg/m3
Carbon Monoxide: 146.9 μg/m3
Nitrogen Dioxide: 3.12 μg/m3
Sulphur Dioxide: 0.56 μg/m3
Ozone: 72 μg/m3

Astronomical

Sunrise: 6:03 AM
Sun Transit: 1:11 PM
Sunset: 8:20 PM
Daylight: 14 hrs 17 mins
Moonrise: 9:52 PM
Moon Transit: 3:12 AM
Moonset: 9:03 AM
Moon Phase: Waning Gibbous
Moon Illumination: 84.9%

Best Times for Fishing or Hunting

Major Periods

2:42 AM - 5:12 AM
2:52 PM - 5:22 PM

Minor Periods

9:22 PM - 10:52 PM
8:33 AM - 10:03 AM

Action Rating: 2 out of 5

Sunday, August 2, 2026

Weather Forecast

Sunny
84.6°F
63.6°F
72.6°F
77%
0 in
9%
0%
11.9 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 4.33 μg/m3
PM10: 4.41 μg/m3
Carbon Monoxide: 216.63 μg/m3
Nitrogen Dioxide: 5.7 μg/m3
Sulphur Dioxide: 0.6 μg/m3
Ozone: 55 μg/m3

Astronomical

Sunrise: 6:04 AM
Sun Transit: 1:11 PM
Sunset: 8:19 PM
Daylight: 14 hrs 15 mins
Moonrise: 10:14 PM
Moon Transit: 3:54 AM
Moonset: 10:09 AM
Moon Phase: Waning Gibbous
Moon Illumination: 75.9%

Best Times for Fishing or Hunting

Major Periods

3:24 AM - 5:54 AM
5:20 PM - 7:50 PM

Minor Periods

9:44 PM - 11:14 PM
9:39 AM - 11:09 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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