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

20°F

-7°C

Humidity 68%
Wind Speed NW 10 mph
Barometer 30.29 in
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Wind Chill9°F (-13°C)
Last update 21 Feb 11:55 am CST
Extended Forecast for

3 Miles NNW Hartwick IA

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 23. Northwest wind 10 to 13 mph, with gusts as high as 20 mph.

    High: 23 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 9. Wind chill values as low as -5. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 9 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 19. Wind chill values as low as -10. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 31 mph.

    High: 19 °F

    Partly Sunny
    and Blustery

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 4. Wind chill values as low as -10. North northwest wind 10 to 14 mph, with gusts as high as 24 mph.

    Low: 4 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 19. North northwest wind 5 to 10 mph becoming light northwest in the afternoon.

    High: 19 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 7.

    Low: 7 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 39.

    High: 39 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 23. Northwest wind 10 to 13 mph, with gusts as high as 20 mph.
Tonight
Mostly cloudy, with a low around 9. Wind chill values as low as -5. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
Partly sunny, with a high near 19. Wind chill values as low as -10. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 31 mph.
Sunday Night
Partly cloudy, with a low around 4. Wind chill values as low as -10. North northwest wind 10 to 14 mph, with gusts as high as 24 mph.
Monday
Sunny, with a high near 19. North northwest wind 5 to 10 mph becoming light northwest in the afternoon.
Monday Night
Partly cloudy, with a low around 7.
Tuesday
Partly sunny, with a high near 40.
Tuesday Night
Mostly cloudy, with a low around 25.
Wednesday
Mostly sunny, with a high near 39.
Wednesday Night
Partly cloudy, with a low around 19.
Thursday
Mostly sunny, with a high near 38.
Thursday Night
Partly cloudy, with a low around 25.
Friday
Sunny, with a high near 50.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Hartwick IA
 41.81°N 92.37°W
Last Update:
11:16 am CST Feb 21, 2026
Forecast Valid:
12pm CST Feb 21, 2026-6pm CST Feb 27, 2026
 
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Additional Resources

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