Heat Wave Expands to the East Coast; Flash Flooding Likely in the Central Plains into the Midwest; Severe Thunderstorms in the Northeast

Dangerous, prolonged heat is ongoing in the Mid-South to Mid-Mississippi Valley and heat expands into the Northeast for a brief period today. Widely scattered instances of flash flooding due to heavy rains are forecast from northeast Kansas to much of Indiana. Scattered strong to severe thunderstorms are possible across parts of New England, northern Mid-Atlantic, and North Dakota. Read More >

Current conditions at

Lamoni, Lamoni Municipal Airport (KLWD)

Lat: 40.63°NLon: 93.9°WElev: 1129ft.

Fair

83°F

28°C

Humidity 77%
Wind Speed SW 3 mph
Barometer 29.93 in (1012.5 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 26 Jul 7:53 pm CDT
Extended Forecast for

6 Miles WSW Decatur IA

Heat Advisory July 27, 12:00pm until July 27, 08:00pm
Click here for hazard details and duration
Heat Advisory
  • Tonight

    Tonight: Mostly clear, with a low around 72. Light and variable wind.

    Low: 72 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 92. Heat index values as high as 107. Calm wind becoming south 5 to 7 mph in the morning.

    High: 92 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 74. South wind around 6 mph.

    Low: 74 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 95. Heat index values as high as 112. Southwest wind around 7 mph.

    High: 95 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 73. South southwest wind around 5 mph becoming calm  in the evening.

    Low: 73 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 70.

    Low: 70 °F

    Mostly Clear
    then Chance
    T-storms

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a high near 83. Chance of precipitation is 60%.

    High: 83 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 64.

    Low: 64 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 72. Light and variable wind.
Sunday
Mostly sunny, with a high near 92. Heat index values as high as 107. Calm wind becoming south 5 to 7 mph in the morning.
Sunday Night
Mostly clear, with a low around 74. South wind around 6 mph.
Monday
Sunny, with a high near 95. Heat index values as high as 112. Southwest wind around 7 mph.
Monday Night
Mostly clear, with a low around 73. South southwest wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 94.
Tuesday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70.
Wednesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 83. Chance of precipitation is 60%.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Thursday
Partly sunny, with a high near 77.
Thursday Night
Mostly cloudy, with a low around 59.
Friday
Partly sunny, with a high near 74.
Friday Night
Mostly cloudy, with a low around 59.
Saturday
Partly sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WSW Decatur IA
 40.73°N 93.93°W
8:05 pm CDT Jul 26, 2025
8pm CDT Jul 26, 2025-6pm CDT Aug 2, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database