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

Hazardous Weather Conditions

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

N/A

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

3 Miles SW Belle Plaine IA

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 61. North wind 3 to 6 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    Low: 61 °F

    Chance
    T-storms then
    Showers

  • Wednesday

    Wednesday: Showers and thunderstorms before 4pm, then a chance of showers. High near 75. North northeast wind 3 to 5 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 75 °F

    Showers

  • Wednesday Night

    Wednesday Night: A 10 percent chance of showers before 7pm. Increasing clouds, with a low around 54. Light north wind.

    Low: 54 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 81. Calm wind.

    High: 81 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 59. Calm wind.

    Low: 59 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 63.

    Low: 63 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Saturday Night

    Saturday Night: A 50 percent chance of showers after 1am. Partly cloudy, with a low around 66.

    Low: 66 °F

    Mostly Clear
    then Chance
    Showers

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 61. North wind 3 to 6 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Wednesday
Showers and thunderstorms before 4pm, then a chance of showers. High near 75. North northeast wind 3 to 5 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
A 10 percent chance of showers before 7pm. Increasing clouds, with a low around 54. Light north wind.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 81. Calm wind.
Thursday Night
Mostly clear, with a low around 59. Calm wind.
Friday
Mostly sunny, with a high near 84.
Friday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 63.
Saturday
Sunny, with a high near 85.
Saturday Night
A 50 percent chance of showers after 1am. Partly cloudy, with a low around 66.
Sunday
Mostly sunny, with a high near 87.
Sunday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Monday
Partly sunny, with a high near 88.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Tuesday
Partly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Belle Plaine IA
 41.85°N 92.31°W
Last Update:
8:53 pm CDT Aug 4, 2026
Forecast Valid:
9pm CDT Aug 4, 2026-6pm CDT Aug 11, 2026
 
Forecast Discussion
 
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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