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

45°F

7°C

Humidity 58%
Wind Speed Calm
Barometer 29.85 in
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 26 Feb 4:15 pm CST
Extended Forecast for

Grinnell Regional Airport IA

  • This Afternoon

    This Afternoon: Sunny, with a high near 46. West wind around 9 mph.

    High: 46 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 29. West wind around 6 mph becoming calm in the evening.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 56. Breezy, with a southwest wind 6 to 11 mph increasing to 15 to 20 mph in the morning. Winds could gust as high as 24 mph.

    High: 56 °F

    Sunny and
    Breezy

  • Friday Night

    Friday Night: Increasing clouds, with a low around 25. West wind 5 to 9 mph becoming northeast after midnight.

    Low: 25 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A 20 percent chance of snow. Partly sunny, with a high near 33. North northeast wind 7 to 14 mph, with gusts as high as 21 mph.

    High: 33 °F

    Slight Chance
    Snow

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 15.

    Low: 15 °F

    Mostly Clear

  • Sunday

    Sunday: A 50 percent chance of snow after noon. Mostly cloudy, with a high near 30.

    High: 30 °F

    Partly Sunny
    then Chance
    Snow

  • Sunday Night

    Sunday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 17.

    Low: 17 °F

    Chance Snow
    then Mostly
    Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 39.

    High: 39 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 46. West wind around 9 mph.
Tonight
Mostly clear, with a low around 29. West wind around 6 mph becoming calm in the evening.
Friday
Sunny, with a high near 56. Breezy, with a southwest wind 6 to 11 mph increasing to 15 to 20 mph in the morning. Winds could gust as high as 24 mph.
Friday Night
Increasing clouds, with a low around 25. West wind 5 to 9 mph becoming northeast after midnight.
Saturday
A 20 percent chance of snow. Partly sunny, with a high near 33. North northeast wind 7 to 14 mph, with gusts as high as 21 mph.
Saturday Night
Mostly clear, with a low around 15.
Sunday
A 50 percent chance of snow after noon. Mostly cloudy, with a high near 30.
Sunday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 17.
Monday
Mostly cloudy, with a high near 39.
Monday Night
Mostly cloudy, with a low around 25.
Tuesday
A chance of rain and snow. Mostly cloudy, with a high near 39. Chance of precipitation is 40%.
Tuesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 27.
Wednesday
A 50 percent chance of rain. Mostly cloudy, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grinnell Regional Airport IA
 41.71°N 92.75°W
Last Update:
2:53 pm CST Feb 26, 2026
Forecast Valid:
4pm CST Feb 26, 2026-6pm CST Mar 4, 2026
 
Forecast Discussion
 
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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