National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Lamoni, Lamoni Municipal Airport (KLWD)

Lat: 40.63°NLon: 93.9°WElev: 1129ft.

Fair

84°F

29°C

Humidity 70%
Wind Speed S 17 G 26 mph
Barometer 29.76 in (1006.8 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 20 Jun 9:53 pm CDT
Extended Forecast for

Grand River IA

Heat Advisory June 20, 10:27pm until June 22, 09:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory June 20, 10:27pm until June 22, 09:00pm

    NOW until 9:00pm Sun

    Heat Advisory

  • Tonight

    Low: 77 °F

    Mostly Clear
    and Breezy

  • Saturday

    Saturday: Sunny and hot, with a high near 97. Heat index values as high as 105. Windy, with a south southwest wind 20 to 24 mph, with gusts as high as 36 mph.

    High: 97 °F

    Hot and Windy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 76. Breezy, with a south southwest wind 16 to 20 mph, with gusts as high as 30 mph.

    Low: 76 °F

    Mostly Clear
    and Breezy

  • Sunday

    Sunday: Sunny, with a high near 96. Heat index values as high as 102. Windy, with a south wind 16 to 22 mph, with gusts as high as 33 mph.

    High: 96 °F

    Sunny and
    Windy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 74. Breezy, with a south wind 15 to 18 mph, with gusts as high as 30 mph.

    Low: 74 °F

    Mostly Clear
    and Breezy

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 95. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 95 °F

    Sunny then
    Chance
    Showers

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 68. Chance of precipitation is 70%.

    Low: 68 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.

    High: 92 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 77. Breezy, with a south southwest wind 17 to 20 mph, with gusts as high as 31 mph.
Saturday
Sunny and hot, with a high near 97. Heat index values as high as 105. Windy, with a south southwest wind 20 to 24 mph, with gusts as high as 36 mph.
Saturday Night
Mostly clear, with a low around 76. Breezy, with a south southwest wind 16 to 20 mph, with gusts as high as 30 mph.
Sunday
Sunny, with a high near 96. Heat index values as high as 102. Windy, with a south wind 16 to 22 mph, with gusts as high as 33 mph.
Sunday Night
Mostly clear, with a low around 74. Breezy, with a south wind 15 to 18 mph, with gusts as high as 30 mph.
Monday
A 40 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 95. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 68. Chance of precipitation is 70%.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Wednesday
A 40 percent chance of showers. Mostly sunny, with a high near 93.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Thursday
A 40 percent chance of showers. Mostly sunny, with a high near 88.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Friday
A 30 percent chance of showers. Mostly sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grand River IA
 40.82°N 93.93°W
Last Update:
9:58 pm CDT Jun 20, 2025
Forecast Valid:
10pm CDT Jun 20, 2025-6pm CDT Jun 27, 2025
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation