Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Hazardous Weather Conditions

Current conditions at

Lamoni, Lamoni Municipal Airport (KLWD)

Lat: 40.63°NLon: 93.9°WElev: 1129ft.

Overcast

71°F

22°C

Humidity 94%
Wind Speed E 6 mph
Barometer 30.15 in (1020.3 mb)
Dewpoint 69°F (21°C)
Visibility 8.00 mi
Last update 18 Sep 5:53 am CDT
Extended Forecast for

4 Miles NE Grant City MO

  • Today

    Today: Cloudy through mid morning, then gradual clearing, with a high near 86. Heat index values as high as 98. East wind 7 to 11 mph becoming south in the afternoon. Winds could gust as high as 18 mph.

    High: 86 °F

    Gradual
    Clearing

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly after 1am.  Increasing clouds, with a low around 69. South wind around 8 mph.  Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Mostly Clear
    then Chance
    T-storms

  • Saturday

    Saturday: Showers and thunderstorms likely before 3pm, then a chance of showers between 3pm and 4pm, then a slight chance of showers and thunderstorms after 4pm.  Partly sunny, with a high near 83. Southwest wind 6 to 8 mph.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7pm.  Low around 64. North northeast wind 3 to 5 mph.  Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

    Low: 64 °F

    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms.  Cloudy, with a high near 71. North wind 5 to 9 mph.  Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 71 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly after 1am.  Cloudy, with a low around 57. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 57 °F

    Showers
    Likely

  • Monday

    Monday: Showers likely before 1pm.  Cloudy, with a high near 62. Chance of precipitation is 60%.

    High: 62 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 60.

    High: 60 °F

    Mostly Cloudy

Detailed Forecast

Today
Cloudy through mid morning, then gradual clearing, with a high near 86. Heat index values as high as 98. East wind 7 to 11 mph becoming south in the afternoon. Winds could gust as high as 18 mph.
Tonight
A chance of showers and thunderstorms, mainly after 1am. Increasing clouds, with a low around 69. South wind around 8 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers and thunderstorms likely before 3pm, then a chance of showers between 3pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 83. Southwest wind 6 to 8 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7pm. Low around 64. North northeast wind 3 to 5 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Sunday
A chance of showers and thunderstorms. Cloudy, with a high near 71. North wind 5 to 9 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers likely, mainly after 1am. Cloudy, with a low around 57. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Showers likely before 1pm. Cloudy, with a high near 62. Chance of precipitation is 60%.
Monday Night
Mostly cloudy, with a low around 52.
Tuesday
Mostly cloudy, with a high near 60.
Tuesday Night
Mostly cloudy, with a low around 47.
Wednesday
Partly sunny, with a high near 63.
Wednesday Night
Mostly cloudy, with a low around 51.
Thursday
Partly sunny, with a high near 67.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NE Grant City MO
 40.52°N 94.36°W (Elev. 988 ft)
6:01 am CDT Sep 18, 2026
6am CDT Sep 18, 2026-6pm CDT Sep 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database