Water Temperature of the Mississippi River in Keokuk, IA

Current Water Temperature

58.6°F

Measurement Time: Tuesday, April 21, 2026, 7:45 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

73.8°F
Sunny
Sunny
76°F
81.2°F
50%
SW 17.9 mph
21.2 mph
81.3°F
56.1°F
0 in
0%
9 mi
1014 mbar
7

Five Day Weather Forecast

Sunny
Tue
H: 85°F
L: 53°F
Patchy rain nearby
Wed
H: 71°F
L: 59°F
Patchy rain nearby
Thu
H: 77°F
L: 58°F
Patchy rain nearby
Fri
H: 77°F
L: 57°F
Partly Cloudy
Sat
H: 70°F
L: 52°F

Air Quality

AQI: 1 - Good
PM2.5: 3.75 μg/m3
PM10: 3.85 μg/m3
Carbon Monoxide: 159.85 μg/m3
Nitrogen Dioxide: 2.75 μg/m3
Sulphur Dioxide: 1.45 μg/m3
Ozone: 99 μg/m3

Astronomical

Sunrise: 6:18 AM
Sun Transit: 1:04 PM
Sunset: 7:51 PM
Daylight: 13 hrs 32 mins
Moonrise: 9:11 AM
Moon Transit: 5:19 PM
Moonset: 12:24 AM
Moon Phase: Waxing Crescent
Moon Illumination: 18.8%

Best Times for Fishing or Hunting

Major Periods

4:06 AM - 6:36 AM
4:49 PM - 7:19 PM

Minor Periods

8:41 AM - 10:11 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Flood Warning issued April 20 at 9:28PM CDT by NWS Quad Cities IA IL

Effective: Mon April 20, 2026, 9:28 PM
Expires: Tue April 21, 2026, 9:30 PM

...The Flood Warning continues for the following rivers in Iowa... Illinois...Missouri... Mississippi River at Ill. City LD16 affecting Rock Island and Muscatine Counties. Mississippi River at Rock Island LD15 affecting Rock Island, Muscatine and Scott Counties. Mississippi River at Muscatine affecting Rock Island, Muscatine, Louisa and Mercer Counties. Mississippi River at Gregory Landing affecting Hancock and Clark Counties. Mississippi River at New Boston LD17 affecting Louisa and Mercer Counties. Mississippi River at Keithsburg affecting Henderson, Louisa, Mercer and Des Moines Counties. Mississippi River at Burlington affecting Hancock, Lee, Henderson and Des Moines Counties. Mississippi River at Gladstone LD18 affecting Henderson and Des Moines Counties. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Mississippi River at Burlington. * WHEN...Until further notice. * IMPACTS...At 17.5 feet, Water affects Riverview Drive in Riverview Park in Fort Madison. * ADDITIONAL DETAILS... - At 9:00 PM CDT Monday the stage was 17.1 feet and rising. - Forecast...The river is expected to rise to a crest of 17.3 feet Wednesday morning. - Flood stage is 15.0 feet.

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Caution is urged when walking near riverbanks. Motorists should not attempt to drive around barricades or drive cars through flooded areas. The next statement will be issued by Tuesday evening at 930 PM CDT.


Flood Warning issued April 20 at 9:28PM CDT by NWS Quad Cities IA IL

Effective: Mon April 20, 2026, 9:28 PM
Expires: Tue April 21, 2026, 9:30 PM

...The Flood Warning continues for the following rivers in Iowa... Illinois...Missouri... Mississippi River at Ill. City LD16 affecting Rock Island and Muscatine Counties. Mississippi River at Rock Island LD15 affecting Rock Island, Muscatine and Scott Counties. Mississippi River at Muscatine affecting Rock Island, Muscatine, Louisa and Mercer Counties. Mississippi River at Gregory Landing affecting Hancock and Clark Counties. Mississippi River at New Boston LD17 affecting Louisa and Mercer Counties. Mississippi River at Keithsburg affecting Henderson, Louisa, Mercer and Des Moines Counties. Mississippi River at Burlington affecting Hancock, Lee, Henderson and Des Moines Counties. Mississippi River at Gladstone LD18 affecting Henderson and Des Moines Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Mississippi River at Gregory Landing. * WHEN...Until further notice. * IMPACTS...At 16.0 feet, Water affects buildings in unprotected low areas. * ADDITIONAL DETAILS... - At 9:00 PM CDT Monday the stage was 16.1 feet steady. - Recent Activity...The river is currently undergoing a broad crest. - Forecast...The river is expected to fall to 15.6 feet Monday, April 27. - Flood stage is 15.0 feet.

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Caution is urged when walking near riverbanks. Motorists should not attempt to drive around barricades or drive cars through flooded areas. The next statement will be issued by Tuesday evening at 930 PM CDT.


Flood Warning issued April 20 at 9:30PM CDT by NWS St Louis MO

Effective: Mon April 20, 2026, 9:30 PM
Expires: Wed April 22, 2026, 9:30 AM

...The Flood Warning is extended for the following rivers in Illinois...Missouri... Mississippi River at Chester. ...The Flood Warning continues for the following rivers in Illinois...Missouri... Mississippi River at Grafton. Mississippi River at Canton. Mississippi River at Saverton. Mississippi River at Winfield. Mississippi River at Hannibal. Mississippi River at Clarksville. Mississippi River at Louisiana. ...The Flood Warning is cancelled for the following rivers in Illinois...Missouri... Mississippi River at Lock & Dam 21. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Mississippi River at Canton. * WHEN...Until further notice. * IMPACTS...At 16.6 feet, Front Street leading to the campground and Corps park campgrounds flood at this height. * ADDITIONAL DETAILS... - At 8:00 PM CDT Monday the stage was 15.8 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:00 PM CDT Monday was 16.0 feet. - Forecast...The river is expected to fall to 15.1 feet Monday, April 27. - Flood stage is 15.0 feet.

Motorists should not attempt to drive around barricades or drive cars through flooded areas. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx


Flood Warning issued April 20 at 9:28PM CDT by NWS Quad Cities IA IL

Effective: Mon April 20, 2026, 9:28 PM
Expires: Tue April 21, 2026, 9:30 PM

...The Flood Warning continues for the following rivers in Iowa... Illinois...Missouri... Mississippi River at Ill. City LD16 affecting Rock Island and Muscatine Counties. Mississippi River at Rock Island LD15 affecting Rock Island, Muscatine and Scott Counties. Mississippi River at Muscatine affecting Rock Island, Muscatine, Louisa and Mercer Counties. Mississippi River at Gregory Landing affecting Hancock and Clark Counties. Mississippi River at New Boston LD17 affecting Louisa and Mercer Counties. Mississippi River at Keithsburg affecting Henderson, Louisa, Mercer and Des Moines Counties. Mississippi River at Burlington affecting Hancock, Lee, Henderson and Des Moines Counties. Mississippi River at Gladstone LD18 affecting Henderson and Des Moines Counties. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Mississippi River at Gladstone LD18. * WHEN...Until further notice. * ADDITIONAL DETAILS... - At 9:00 PM CDT Monday the stage was 12.4 feet and rising. - Forecast...The river is expected to rise to a crest of 12.6 feet Wednesday evening. - Flood stage is 10.0 feet.

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Caution is urged when walking near riverbanks. Motorists should not attempt to drive around barricades or drive cars through flooded areas. The next statement will be issued by Tuesday evening at 930 PM CDT.


Flood Warning issued April 20 at 9:28PM CDT by NWS Quad Cities IA IL

Effective: Mon April 20, 2026, 9:28 PM
Expires: Tue April 21, 2026, 9:30 PM

...The Flood Warning continues for the following rivers in Iowa... Illinois...Missouri... Mississippi River at Ill. City LD16 affecting Rock Island and Muscatine Counties. Mississippi River at Rock Island LD15 affecting Rock Island, Muscatine and Scott Counties. Mississippi River at Muscatine affecting Rock Island, Muscatine, Louisa and Mercer Counties. Mississippi River at Gregory Landing affecting Hancock and Clark Counties. Mississippi River at New Boston LD17 affecting Louisa and Mercer Counties. Mississippi River at Keithsburg affecting Henderson, Louisa, Mercer and Des Moines Counties. Mississippi River at Burlington affecting Hancock, Lee, Henderson and Des Moines Counties. Mississippi River at Gladstone LD18 affecting Henderson and Des Moines Counties. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Mississippi River at Keithsburg. * WHEN...Until further notice. * IMPACTS...At 16.0 feet, Water is over the campground and boat ramp in Keithsburg. * ADDITIONAL DETAILS... - At 8:30 PM CDT Monday the stage was 15.6 feet and rising. - Forecast...The river is expected to rise to a crest of 15.9 feet Wednesday evening. - Flood stage is 14.0 feet.

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Caution is urged when walking near riverbanks. Motorists should not attempt to drive around barricades or drive cars through flooded areas. The next statement will be issued by Tuesday evening at 930 PM CDT.


Tuesday, April 21, 2026

Weather Forecast

Sunny
84.9°F
53.2°F
68.9°F
50%
0 in
0%
0%
18.8 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 3.5 μg/m3
PM10: 3.87 μg/m3
Carbon Monoxide: 162.01 μg/m3
Nitrogen Dioxide: 3.38 μg/m3
Sulphur Dioxide: 1.81 μg/m3
Ozone: 96.76 μg/m3

Astronomical

Sunrise: 6:18 AM
Sun Transit: 1:04 PM
Sunset: 7:51 PM
Daylight: 13 hrs 32 mins
Moonrise: 9:11 AM
Moon Transit: 5:19 PM
Moonset: 12:24 AM
Moon Phase: Waxing Crescent
Moon Illumination: 18.8%

Best Times for Fishing or Hunting

Major Periods

4:06 AM - 6:36 AM
4:49 PM - 7:19 PM

Minor Periods

8:41 AM - 10:11 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, April 22, 2026

Weather Forecast

Patchy rain nearby
71.4°F
58.7°F
64.5°F
80%
0.08 in
84%
0%
15 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 3.13 μg/m3
PM10: 3.36 μg/m3
Carbon Monoxide: 154.65 μg/m3
Nitrogen Dioxide: 3.21 μg/m3
Sulphur Dioxide: 1.49 μg/m3
Ozone: 85.28 μg/m3

Astronomical

Sunrise: 6:17 AM
Sun Transit: 1:03 PM
Sunset: 7:52 PM
Daylight: 13 hrs 35 mins
Moonrise: 10:22 AM
Moon Transit: 6:22 PM
Moonset: 1:25 AM
Moon Phase: Waxing Crescent
Moon Illumination: 28.4%

Best Times for Fishing or Hunting

Major Periods

5:10 AM - 7:40 AM
5:52 PM - 8:22 PM

Minor Periods

9:52 AM - 11:22 AM
12:55 AM - 2:25 AM

Action Rating: 2 out of 5

Thursday, April 23, 2026

Weather Forecast

Patchy rain nearby
77.2°F
58.2°F
67.3°F
75%
0.17 in
87%
0%
20.8 mph
6.9


Air Quality

AQI: 1 - Good
PM2.5: 3.43 μg/m3
PM10: 3.79 μg/m3
Carbon Monoxide: 158.05 μg/m3
Nitrogen Dioxide: 4.86 μg/m3
Sulphur Dioxide: 1.27 μg/m3
Ozone: 76.68 μg/m3

Astronomical

Sunrise: 6:15 AM
Sun Transit: 1:03 PM
Sunset: 7:53 PM
Daylight: 13 hrs 37 mins
Moonrise: 11:35 AM
Moon Transit: 7:19 PM
Moonset: 2:14 AM
Moon Phase: First Quarter
Moon Illumination: 39.1%

Best Times for Fishing or Hunting

Major Periods

6:10 AM - 8:40 AM
6:49 PM - 9:19 PM

Minor Periods

11:05 AM - 12:35 AM
1:44 AM - 3:14 AM

Action Rating: 3 out of 5

Friday, April 24, 2026

Weather Forecast

Patchy rain nearby
77°F
57.3°F
66.1°F
71%
0.12 in
75%
0%
17.9 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 2.81 μg/m3
PM10: 3.07 μg/m3
Carbon Monoxide: 150.5 μg/m3
Nitrogen Dioxide: 2.91 μg/m3
Sulphur Dioxide: 1.17 μg/m3
Ozone: 86.88 μg/m3

Astronomical

Sunrise: 6:14 AM
Sun Transit: 1:03 PM
Sunset: 7:54 PM
Daylight: 13 hrs 40 mins
Moonrise: 12:50 AM
Moon Transit: 8:12 PM
Moonset: 2:52 AM
Moon Phase: First Quarter
Moon Illumination: 50.4%

Best Times for Fishing or Hunting

Major Periods

7:05 AM - 9:35 AM
7:42 PM - 10:12 PM

Minor Periods

12:20 AM - 1:50 PM
2:22 AM - 3:52 AM

Action Rating: 3 out of 5

Saturday, April 25, 2026

Weather Forecast

Partly Cloudy
69.6°F
52.4°F
61.3°F
61%
0 in
0%
0%
14.1 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 2.89 μg/m3
PM10: 2.95 μg/m3
Carbon Monoxide: 184.66 μg/m3
Nitrogen Dioxide: 6.93 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 56.62 μg/m3

Astronomical

Sunrise: 6:13 AM
Sun Transit: 1:03 PM
Sunset: 7:55 PM
Daylight: 13 hrs 42 mins
Moonrise: 2:01 PM
Moon Transit: 9:00 PM
Moonset: 3:22 AM
Moon Phase: First Quarter
Moon Illumination: 61.6%

Best Times for Fishing or Hunting

Major Periods

7:55 AM - 10:25 AM
8:30 PM - 11:00 PM

Minor Periods

1:31 PM - 3:01 PM
2:52 AM - 4:22 AM

Action Rating: 2 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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