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.

Overcast

74°F

23°C

Humidity 72%
Wind Speed E 10 mph
Barometer 30.24 in
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 31 Aug 1:55 pm CDT
Extended Forecast for

4 Miles S Gilman IA

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 75. East southeast wind 6 to 8 mph.

    High: 75 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers after midnight. Mostly cloudy, with a low around 57. Light east wind. Chance of precipitation is 20%.

    Low: 57 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Labor Day

    Labor Day: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 73. Calm wind becoming east southeast around 6 mph in the afternoon.

    High: 73 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 54. Calm wind.

    Low: 54 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 77. Calm wind.

    High: 77 °F

    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 57. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 68.

    High: 68 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 75. East southeast wind 6 to 8 mph.
Tonight
A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers after midnight. Mostly cloudy, with a low around 57. Light east wind. Chance of precipitation is 20%.
Labor Day
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 73. Calm wind becoming east southeast around 6 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 54. Calm wind.
Tuesday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 77. Calm wind.
Tuesday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 57. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 68.
Wednesday Night
Mostly clear, with a low around 43.
Thursday
Mostly sunny, with a high near 62.
Thursday Night
Partly cloudy, with a low around 46.
Friday
Sunny, with a high near 69.
Friday Night
Mostly clear, with a low around 46.
Saturday
Sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Gilman IA
 41.82°N 92.78°W
Last Update:
12:21 pm CDT Aug 31, 2025
Forecast Valid:
2pm CDT Aug 31, 2025-6pm CDT Sep 6, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation