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 >

Hazardous Weather Conditions

Current conditions at

Lamoni, Lamoni Municipal Airport (KLWD)

Lat: 40.63°NLon: 93.9°WElev: 1129ft.

Overcast

70°F

21°C

Humidity 97%
Wind Speed E 3 mph
Barometer 30.22 in (1022.8 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 16 Sep 2:53 pm CDT
Extended Forecast for

5 Miles WSW Mercer MO

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms, mainly before 4pm.  Mostly cloudy, with a high near 77. Light east southeast wind.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Chance
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly after 3am.  Patchy fog after 1am.  Otherwise, mostly cloudy, with a low around 67. East wind around 5 mph becoming calm  after midnight.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Chance
    T-storms and
    Patchy Fog

  • Thursday

    Thursday: A chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm.  Patchy fog before 10am.  Otherwise, partly sunny, with a high near 81. Light and variable wind becoming north around 5 mph in the afternoon.  Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Chance
    T-storms and
    Patchy Fog
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 68. Light and variable wind becoming east around 6 mph in the evening.

    Low: 68 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 84. East southeast wind 7 to 10 mph becoming south in the afternoon. Winds could gust as high as 20 mph.

    High: 84 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: A chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 70. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Mostly Clear
    then Chance
    T-storms

  • Saturday

    Saturday: A chance of showers before 1pm.  Partly sunny, with a high near 82. Chance of precipitation is 30%.

    High: 82 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 65. Chance of precipitation is 70%.

    Low: 65 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm.  Mostly cloudy, with a high near 71. Chance of precipitation is 60%.

    High: 71 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms, mainly before 4pm. Mostly cloudy, with a high near 77. Light east southeast wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms, mainly after 3am. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 67. East wind around 5 mph becoming calm after midnight. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm. Patchy fog before 10am. Otherwise, partly sunny, with a high near 81. Light and variable wind becoming north around 5 mph in the afternoon. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Mostly cloudy, with a low around 68. Light and variable wind becoming east around 6 mph in the evening.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 84. East southeast wind 7 to 10 mph becoming south in the afternoon. Winds could gust as high as 20 mph.
Friday Night
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers before 1pm. Partly sunny, with a high near 82. Chance of precipitation is 30%.
Saturday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 65. Chance of precipitation is 70%.
Sunday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 71. Chance of precipitation is 60%.
Sunday Night
A chance of showers and thunderstorms, then showers likely after 1am. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.
Monday
A chance of showers. Mostly cloudy, with a high near 68. Chance of precipitation is 30%.
Monday Night
Mostly cloudy, with a low around 59.
Tuesday
Partly sunny, with a high near 69.
Tuesday Night
Partly cloudy, with a low around 57.
Wednesday
Mostly sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW Mercer MO
 40.47°N 93.61°W (Elev. 899 ft)
3:36 pm CDT Sep 16, 2026
3pm 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