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.

Mostly Cloudy

73°F

23°C

Humidity 68%
Wind Speed NE 9 mph
Barometer 30.16 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 16 Sep 9:15 pm CDT
Extended Forecast for

Gilman IA

  • Tonight

    Tonight: A chance of showers and thunderstorms before 11pm, then a slight chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 62. Calm wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 86. Calm wind becoming southeast around 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Calm wind becoming southeast around 5 mph.

    Low: 61 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 85. South southeast wind 3 to 6 mph. Chance of precipitation is 20%.

    High: 85 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Light southeast wind. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Chance
    T-storms

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 77. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 59.

    Low: 59 °F

    Chance
    T-storms

  • Saturday

    Saturday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 80. Chance of precipitation is 40%.

    High: 80 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 62.

    Low: 62 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 11pm, then a slight chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 62. Calm wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 86. Calm wind becoming southeast around 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Calm wind becoming southeast around 5 mph.
Thursday
A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 85. South southeast wind 3 to 6 mph. Chance of precipitation is 20%.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Light southeast wind. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 77. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 59.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 80. Chance of precipitation is 40%.
Saturday Night
A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 62.
Sunday
Mostly sunny, with a high near 80.
Sunday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 61.
Monday
Mostly sunny, with a high near 80.
Monday Night
A 30 percent chance of showers. Partly cloudy, with a low around 56.
Tuesday
Sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Gilman IA
 41.88°N 92.77°W
Last Update:
6:36 pm CDT Sep 16, 2025
Forecast Valid:
9pm CDT Sep 16, 2025-6pm CDT Sep 23, 2025
 
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