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

34°F

1°C

Humidity 81%
Wind Speed Calm
Barometer 30.05 in
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 27 Feb 10:55 pm CST
Extended Forecast for

3 Miles NNW Hartwick IA

  • Tonight

    Tonight: Partly cloudy, with a low around 25. North wind around 8 mph.

    Low: 25 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 38. East wind 7 to 10 mph.

    High: 38 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 16. Wind chill values as low as 5. North northeast wind 8 to 10 mph.

    Low: 16 °F

    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of snow after noon. Increasing clouds, with a high near 31. Wind chill values as low as 5. East northeast wind 7 to 9 mph. Little or no snow accumulation expected.

    High: 31 °F

    Partly Sunny
    then Chance
    Snow

  • Sunday Night

    Sunday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 20. East wind around 7 mph. New snow accumulation of less than a half inch possible.

    Low: 20 °F

    Chance Snow

  • Monday

    Monday: A slight chance of rain and snow after noon. Mostly cloudy, with a high near 40. Chance of precipitation is 20%.

    High: 40 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Monday Night

    Monday Night: A 50 percent chance of rain. Cloudy, with a low around 30.

    Low: 30 °F

    Chance Rain

  • Tuesday

    Tuesday: A 50 percent chance of rain. Mostly cloudy, with a high near 43.

    High: 43 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain. Partly cloudy, with a low around 30.

    Low: 30 °F

    Chance Rain

Detailed Forecast

Tonight
Partly cloudy, with a low around 25. North wind around 8 mph.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 38. East wind 7 to 10 mph.
Saturday Night
Partly cloudy, with a low around 16. Wind chill values as low as 5. North northeast wind 8 to 10 mph.
Sunday
A 30 percent chance of snow after noon. Increasing clouds, with a high near 31. Wind chill values as low as 5. East northeast wind 7 to 9 mph. Little or no snow accumulation expected.
Sunday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 20. East wind around 7 mph. New snow accumulation of less than a half inch possible.
Monday
A slight chance of rain and snow after noon. Mostly cloudy, with a high near 40. Chance of precipitation is 20%.
Monday Night
A 50 percent chance of rain. Cloudy, with a low around 30.
Tuesday
A 50 percent chance of rain. Mostly cloudy, with a high near 43.
Tuesday Night
A 30 percent chance of rain. Partly cloudy, with a low around 30.
Wednesday
A 40 percent chance of rain. Partly sunny, with a high near 47.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 36. Chance of precipitation is 60%.
Thursday
A 50 percent chance of rain. Mostly cloudy, with a high near 52.
Thursday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 36.
Friday
A 50 percent chance of rain. Mostly cloudy, with a high near 52.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Hartwick IA
 41.81°N 92.37°W
Last Update:
10:11 pm CST Feb 27, 2026
Forecast Valid:
11pm CST Feb 27, 2026-6pm CST Mar 6, 2026
 
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Additional Resources

Radar & Satellite Image

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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