Water Temperature of the Mississippi River in Keokuk, IA
Current Water Temperature
Measurement Time: Sunday, July 19, 2026, 11:45 PM CDT
Temperature Locations
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Local Points of Interest
Hamilton, IL; Montebello State Park; Victory Park; Lock and Dam 19Station 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

Five Day Weather Forecast

Mon
H: 100°F
L: 69°F

Tue
H: 85°F
L: 66°F

Wed
H: 76°F
L: 58°F

Thu
H: 74°F
L: 57°F

Fri
H: 63°F
L: 60°F
Air Quality
Nitrogen Dioxide: 7.8 μg/m3
Sulphur Dioxide: 1.1 μg/m3
Ozone: 66 μg/m3
Astronomical
Sun Transit: 1:11 PM
Sunset: 8:31 PM
Daylight: 14 hrs 39 mins
Moon Transit: 6:28 PM
Moonset: 12:25 AM
Moon Phase: Waxing Crescent
Moon Illumination: 32.7%
Best Times for Fishing or Hunting
Major Periods
5:24 AM - 7:54 AM5:58 PM - 8:28 PM
Minor Periods
12:29 AM - 1:59 PM12:00 AM - 12:00 AM
Action Rating: 4 out of 5
Heat Advisory issued July 19 at 11:28AM CDT until July 20 at 8:00PM CDT by NWS St Louis MO
Effective: Sun July 19, 2026, 11:28 AM
Expires: Mon July 20, 2026, 2:30 AM
* WHAT...Heat index values up to 105 expected. * WHERE...In Illinois, Adams IL County. In Missouri, Audrain MO, Lincoln MO, Knox MO, Lewis MO, Marion MO, Monroe MO, Pike MO, Ralls MO, and Shelby MO Counties. * WHEN...From noon to 8 PM CDT Monday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
Heat Advisory issued July 20 at 2:10AM CDT until July 20 at 8:00PM CDT by NWS St Louis MO
Effective: Mon July 20, 2026, 2:10 AM
Expires: Mon July 20, 2026, 5:15 PM
* WHAT...Heat index values up to 108 expected. * WHERE...In Illinois, Adams IL County. In Missouri, Audrain MO, Lincoln MO, Knox MO, Lewis MO, Marion MO, Monroe MO, Pike MO, Ralls MO, and Shelby MO Counties. * WHEN...From noon today to 8 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.17 μg/m3
Sulphur Dioxide: 1.23 μg/m3
Ozone: 98.04 μg/m3
Astronomical
Sun Transit: 1:11 PM
Sunset: 8:31 PM
Daylight: 14 hrs 39 mins
Moon Transit: 6:28 PM
Moonset: 12:25 AM
Moon Phase: Waxing Crescent
Moon Illumination: 32.7%
Best Times for Fishing or Hunting
Major Periods
5:24 AM - 7:54 AM5:58 PM - 8:28 PM
Minor Periods
12:29 AM - 1:59 PM12:00 AM - 12:00 AM
Action Rating: 4 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 3.19 μg/m3
Sulphur Dioxide: 0.57 μg/m3
Ozone: 90.21 μg/m3
Astronomical
Sun Transit: 1:11 PM
Sunset: 8:31 PM
Daylight: 14 hrs 37 mins
Moon Transit: 7:12 PM
Moonset: 12:48 AM
Moon Phase: First Quarter
Moon Illumination: 43.7%
Best Times for Fishing or Hunting
Major Periods
6:08 AM - 8:38 AM6:42 PM - 9:12 PM
Minor Periods
1:33 PM - 3:03 PM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.58 μg/m3
Sulphur Dioxide: 0.47 μg/m3
Ozone: 83.25 μg/m3
Astronomical
Sun Transit: 1:12 PM
Sunset: 8:30 PM
Daylight: 14 hrs 36 mins
Moon Transit: 7:57 PM
Moonset: 12:14 AM
Moon Phase: First Quarter
Moon Illumination: 55.0%
Best Times for Fishing or Hunting
Major Periods
6:53 AM - 9:23 AM7:27 PM - 9:57 PM
Minor Periods
2:37 PM - 4:07 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 6.16 μg/m3
Sulphur Dioxide: 0.87 μg/m3
Ozone: 83.83 μg/m3
Astronomical
Sun Transit: 1:12 PM
Sunset: 8:29 PM
Daylight: 14 hrs 34 mins
Moon Transit: 8:45 PM
Moonset: 12:43 AM
Moon Phase: First Quarter
Moon Illumination: 66.1%
Best Times for Fishing or Hunting
Major Periods
7:40 AM - 10:10 AM8:15 PM - 10:45 PM
Minor Periods
3:40 PM - 5:10 PM12:13 AM - 1:43 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 9.9 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 53.25 μg/m3
Astronomical
Sun Transit: 1:12 PM
Sunset: 8:28 PM
Daylight: 14 hrs 32 mins
Moon Transit: 9:35 PM
Moonset: 1:17 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.3%
Best Times for Fishing or Hunting
Major Periods
8:30 AM - 11:00 AM9:05 PM - 11:35 PM
Minor Periods
4:41 PM - 6:11 PM12:47 AM - 2:17 AM
Action Rating: 2 out of 5
