Heavy to Excessive Rains in The Four Corners Region and Midwest; Heat Persists in the South-Central U.S.

Repeated rounds of showers and thunderstorms could bring a flash flooding threat across the Four Corners region and from the mid-Mississippi Valley into the lower Great Lakes. Hot temperatures and high humidity will continue to challenge daily records from the Southern Plains to the lower Mississippi Valley. Read More >

Current conditions at

Keokuk Municipal Airport (KEOK)

Lat: 40.46°NLon: 91.43°WElev: 676ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

5 Miles E Williamstown MO

  • Tonight

    Tonight: Increasing clouds, with a low around 70. Northeast wind 3 to 6 mph.

    Low: 70 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A slight chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms after 3pm.  Cloudy through mid morning, then gradual clearing, with a high near 86. East wind around 6 mph becoming light and variable.  Chance of precipitation is 20%.

    High: 86 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms between 1am and 3am. Some of the storms could produce heavy rainfall.  Increasing clouds, with a low around 69. Northeast wind around 7 mph.  Chance of precipitation is 40%.

    Low: 69 °F

    Partly Cloudy
    then Heavy
    Rain

  • Friday

    Friday: A slight chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 1pm.  Cloudy through mid morning, then gradual clearing, with a high near 88. East wind around 6 mph becoming south in the afternoon.  Chance of precipitation is 20%.

    High: 88 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 72. South wind 3 to 6 mph.

    Low: 72 °F

    Mostly Clear

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 1pm.  Partly sunny, with a high near 89. Chance of precipitation is 30%.

    High: 89 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 68. Chance of precipitation is 70%.

    Low: 68 °F

    Showers
    Likely

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 78.

    High: 78 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 64. Chance of precipitation is 60%.

    Low: 64 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

Tonight
Increasing clouds, with a low around 70. Northeast wind 3 to 6 mph.
Thursday
A slight chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms after 3pm. Cloudy through mid morning, then gradual clearing, with a high near 86. East wind around 6 mph becoming light and variable. Chance of precipitation is 20%.
Thursday Night
A chance of showers and thunderstorms between 1am and 3am. Some of the storms could produce heavy rainfall. Increasing clouds, with a low around 69. Northeast wind around 7 mph. Chance of precipitation is 40%.
Friday
A slight chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 1pm. Cloudy through mid morning, then gradual clearing, with a high near 88. East wind around 6 mph becoming south in the afternoon. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 72. South wind 3 to 6 mph.
Saturday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 89. Chance of precipitation is 30%.
Saturday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 68. Chance of precipitation is 70%.
Sunday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 78.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.
Monday
A 50 percent chance of showers. Mostly cloudy, with a high near 74.
Monday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 60.
Tuesday
A 20 percent chance of showers. Mostly cloudy, with a high near 72.
Tuesday Night
Partly cloudy, with a low around 59.
Wednesday
Mostly sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles E Williamstown MO
 40.2°N 91.77°W (Elev. 682 ft)
6:06 pm CDT Sep 16, 2026
6pm CDT Sep 16, 2026-6pm CDT Sep 23, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database