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.

Fair

74°F

23°C

Humidity 75%
Wind Speed S 8 mph
Barometer 29.87 in
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 31 Aug 4:55 am CDT
Extended Forecast for

Gilman IA

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 3pm. Mostly cloudy, then becoming sunny during the afternoon, with a high near 92. Southwest wind 6 to 10 mph.

    High: 92 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after 2am. Increasing clouds, with a low around 73. Light and variable wind.

    Low: 73 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 93. South wind 3 to 5 mph.

    High: 93 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 74. South southeast wind 3 to 7 mph.

    Low: 74 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 93. South southwest wind 6 to 9 mph becoming west northwest in the afternoon.

    High: 93 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72.

    Low: 72 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 91.

    High: 91 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 3pm. Mostly cloudy, then becoming sunny during the afternoon, with a high near 92. Southwest wind 6 to 10 mph.
Tonight
A 20 percent chance of showers and thunderstorms after 2am. Increasing clouds, with a low around 73. Light and variable wind.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 93. South wind 3 to 5 mph.
Tuesday Night
Mostly clear, with a low around 74. South southeast wind 3 to 7 mph.
Wednesday
Sunny, with a high near 93. South southwest wind 6 to 9 mph becoming west northwest in the afternoon.
Wednesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72.
Thursday
A 50 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 91.
Thursday Night
Mostly clear, with a low around 71.
Friday
Mostly sunny, with a high near 90.
Friday Night
Mostly clear, with a low around 71.
Saturday
Mostly sunny, with a high near 90.
Saturday Night
Partly cloudy, with a low around 69.
Sunday
A 30 percent chance of showers. Mostly sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Gilman IA
 41.88°N 92.77°W
Last Update:
3:47 am CDT Aug 31, 2026
Forecast Valid:
5am CDT Aug 31, 2026-6pm CDT Sep 6, 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