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

15°F

-9°C

Humidity 49%
Wind Speed Calm
Barometer 30.33 in
Dewpoint -1°F (-18°C)
Visibility 10.00 mi
Last update 29 Jan 4:15 pm CST
Extended Forecast for

Grinnell Regional Airport IA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 17. Wind chill values as low as 5. North wind around 6 mph.

    High: 17 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around -1. North wind around 6 mph becoming calm in the evening.

    Low: -1 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 12. Wind chill values as low as -15. Blustery, with a north wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 24 mph.

    High: 12 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Blustery

  • Friday Night

    Friday Night: Mostly clear, with a low around 0. Wind chill values as low as -10. North northwest wind 6 to 14 mph, with gusts as high as 23 mph.

    Low: 0 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 20. North northwest wind around 6 mph becoming calm in the morning.

    High: 20 °F

    Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of snow after midnight. Partly cloudy, with a low around 8.

    Low: 8 °F

    Partly Cloudy
    then Slight
    Chance Snow

  • Sunday

    Sunday: A 50 percent chance of snow. Mostly cloudy, with a high near 28.

    High: 28 °F

    Chance Snow

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 16.

    Low: 16 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 28.

    High: 28 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 17. Wind chill values as low as 5. North wind around 6 mph.
Tonight
Partly cloudy, with a low around -1. North wind around 6 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 12. Wind chill values as low as -15. Blustery, with a north wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 24 mph.
Friday Night
Mostly clear, with a low around 0. Wind chill values as low as -10. North northwest wind 6 to 14 mph, with gusts as high as 23 mph.
Saturday
Sunny, with a high near 20. North northwest wind around 6 mph becoming calm in the morning.
Saturday Night
A 20 percent chance of snow after midnight. Partly cloudy, with a low around 8.
Sunday
A 50 percent chance of snow. Mostly cloudy, with a high near 28.
Sunday Night
Mostly cloudy, with a low around 16.
Monday
Mostly sunny, with a high near 28.
Monday Night
Mostly cloudy, with a low around 16.
Tuesday
A 30 percent chance of snow. Mostly cloudy, with a high near 30.
Tuesday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 17.
Wednesday
Partly sunny, with a high near 29.
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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:
3:17 pm CST Jan 29, 2026
Forecast Valid:
4pm CST Jan 29, 2026-6pm CST Feb 4, 2026
 
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Additional Resources

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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