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

24°F

-4°C

Humidity 87%
Wind Speed Calm
Barometer 30.28 in
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Last update 11 Feb 3:15 am CST
Extended Forecast for

Grinnell Regional Airport IA

  • Overnight

    Overnight: Mostly clear, with a low around 23. Northwest wind around 7 mph.

    Low: 23 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 47. Northwest wind around 6 mph becoming calm in the morning.

    High: 47 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain and snow after 2am. Increasing clouds, with a low around 32. Calm wind. Chance of precipitation is 20%.

    Low: 32 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Thursday

    Thursday: A slight chance of rain and snow before 9am, then a slight chance of rain between 9am and noon. Partly sunny, with a high near 51. Calm wind becoming south around 6 mph. Chance of precipitation is 20%.

    High: 51 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 29. Calm wind.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 54.

    High: 54 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 23. Northwest wind around 7 mph.
Wednesday
Sunny, with a high near 47. Northwest wind around 6 mph becoming calm in the morning.
Wednesday Night
A slight chance of rain and snow after 2am. Increasing clouds, with a low around 32. Calm wind. Chance of precipitation is 20%.
Thursday
A slight chance of rain and snow before 9am, then a slight chance of rain between 9am and noon. Partly sunny, with a high near 51. Calm wind becoming south around 6 mph. Chance of precipitation is 20%.
Thursday Night
Mostly clear, with a low around 29. Calm wind.
Friday
Sunny, with a high near 54.
Friday Night
Mostly clear, with a low around 33.
Saturday
Mostly sunny, with a high near 54.
Saturday Night
Partly cloudy, with a low around 34.
Sunday
Mostly sunny, with a high near 57.
Sunday Night
Partly cloudy, with a low around 37.
Washington's Birthday
Partly sunny, with a high near 58.
Monday Night
Mostly cloudy, with a low around 43.
Tuesday
Mostly sunny, with a high near 63. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grinnell Regional Airport IA
 41.71°N 92.75°W
Last Update:
3:21 am CST Feb 11, 2026
Forecast Valid:
3am CST Feb 11, 2026-6pm CST Feb 17, 2026
 
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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