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

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Fair

5°F

-15°C

Humidity 75%
Wind Speed NW 7 mph
Barometer 30.63 in
Dewpoint -2°F (-19°C)
Visibility 10.00 mi
Wind Chill-7°F (-22°C)
Last update 23 Feb 7:55 am CST
Extended Forecast for

4 Miles S Gilman IA

  • Today

    Today: Sunny, with a high near 18. Wind chill values as low as -10. North northwest wind 5 to 10 mph becoming light and variable in the afternoon.

    High: 18 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a temperature falling to near 10 by 8pm, then rising to around 19 during the remainder of the night. Wind chill values as low as zero. Light south wind increasing to 9 to 14 mph in the evening. Winds could gust as high as 21 mph.

    Low: 10 °F⇑

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 39. Wind chill values as low as 5. South wind 11 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 22 mph.

    High: 39 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 16. Wind chill values as low as 10. Northwest wind 7 to 10 mph.

    Low: 16 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: A 30 percent chance of snow after noon. Mostly sunny, with a high near 31. Northwest wind 5 to 7 mph becoming east northeast in the afternoon. Little or no snow accumulation expected.

    High: 31 °F

    Sunny then
    Chance Snow

  • Wednesday Night

    Wednesday Night: Snow likely, mainly before midnight. Mostly cloudy, with a low around 19. Chance of precipitation is 60%.

    Low: 19 °F

    Snow Likely

  • Thursday

    Thursday: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 23.

    Low: 23 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 18. Wind chill values as low as -10. North northwest wind 5 to 10 mph becoming light and variable in the afternoon.
Tonight
Partly cloudy, with a temperature falling to near 10 by 8pm, then rising to around 19 during the remainder of the night. Wind chill values as low as zero. Light south wind increasing to 9 to 14 mph in the evening. Winds could gust as high as 21 mph.
Tuesday
Mostly cloudy, with a high near 39. Wind chill values as low as 5. South wind 11 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 22 mph.
Tuesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 16. Wind chill values as low as 10. Northwest wind 7 to 10 mph.
Wednesday
A 30 percent chance of snow after noon. Mostly sunny, with a high near 31. Northwest wind 5 to 7 mph becoming east northeast in the afternoon. Little or no snow accumulation expected.
Wednesday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 19. Chance of precipitation is 60%.
Thursday
Mostly sunny, with a high near 34.
Thursday Night
Mostly clear, with a low around 23.
Friday
Sunny, with a high near 48.
Friday Night
Mostly clear, with a low around 25.
Saturday
Partly sunny, with a high near 39.
Saturday Night
Partly cloudy, with a low around 17.
Sunday
A 30 percent chance of snow. Partly sunny, with a high near 30.
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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:
6:36 am CST Feb 23, 2026
Forecast Valid:
8am CST Feb 23, 2026-6pm CST Mar 1, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation