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

38°F

3°C

Humidity 57%
Wind Speed Calm
Barometer 29.94 in
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Last update 14 Feb 11:15 pm CST
Extended Forecast for

3 Miles NNW Hartwick IA

  • Tonight

    Tonight: Partly cloudy, with a low around 34. South wind around 6 mph becoming west after midnight.

    Low: 34 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 59. North northwest wind 5 to 7 mph becoming calm in the afternoon.

    High: 59 °F

    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 39. Calm wind becoming south southwest 5 to 9 mph in the evening.

    Low: 39 °F

    Increasing
    Clouds

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 62. South southwest wind 7 to 13 mph, with gusts as high as 20 mph.

    High: 62 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 42. Southeast wind around 6 mph.

    Low: 42 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 65. Breezy.

    High: 65 °F

    Mostly Cloudy
    then Mostly
    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain. Partly cloudy, with a low around 48. Breezy.

    Low: 48 °F

    Slight Chance
    Rain and
    Breezy

  • Wednesday

    Wednesday: Sunny, with a high near 62. Breezy.

    High: 62 °F

    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 34. South wind around 6 mph becoming west after midnight.
Sunday
Sunny, with a high near 59. North northwest wind 5 to 7 mph becoming calm in the afternoon.
Sunday Night
Increasing clouds, with a low around 39. Calm wind becoming south southwest 5 to 9 mph in the evening.
Washington's Birthday
Mostly sunny, with a high near 62. South southwest wind 7 to 13 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 42. Southeast wind around 6 mph.
Tuesday
Partly sunny, with a high near 65. Breezy.
Tuesday Night
A 20 percent chance of rain. Partly cloudy, with a low around 48. Breezy.
Wednesday
Sunny, with a high near 62. Breezy.
Wednesday Night
Mostly clear, with a low around 32.
Thursday
A 30 percent chance of rain after noon. Partly sunny, with a high near 48.
Thursday Night
Mostly cloudy, with a low around 25.
Friday
Partly sunny, with a high near 39.
Friday Night
Mostly cloudy, with a low around 18.
Saturday
Mostly sunny, with a high near 39.
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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:
10:26 pm CST Feb 14, 2026
Forecast Valid:
11pm CST Feb 14, 2026-6pm CST Feb 21, 2026
 
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Additional Resources

Radar & Satellite Image

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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