Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Snow

23°F

-5°C

Humidity 90%
Wind Speed W 18 G 24 mph
Barometer 29.53 in
Dewpoint 20°F (-7°C)
Visibility 0.75 mi
Wind Chill9°F (-13°C)
Last update 20 Feb 1:55 am CST
Extended Forecast for

3 Miles NNW Hartwick IA

Winter Weather Advisory February 20, 02:14am until February 20, 06:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory February 20, 02:14am until February 20, 06:00am

    NOW until 6:00am Fri

    Winter Weather Advisory

  • Overnight

    Low: 23 °F

    Heavy Snow
    and Windy

  • Friday

    Friday: A slight chance of snow before 7am, then a chance of flurries between 7am and 8am.  Mostly cloudy, then gradually becoming sunny, with a high near 30. Wind chill values as low as 10. Windy, with a west northwest wind 17 to 22 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 36 mph.  Chance of precipitation is 20%.

    High: 30 °F

    Slight Chance
    Snow and
    Windy then
    Mostly Sunny
    and Blustery

  • Friday Night

    Friday Night: Partly cloudy, with a low around 15. Wind chill values as low as 5. West wind 6 to 8 mph.

    Low: 15 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 28. Wind chill values as low as 5. Northwest wind 7 to 13 mph, with gusts as high as 21 mph.

    High: 28 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 12. Northwest wind 10 to 14 mph, with gusts as high as 23 mph.

    Low: 12 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 22. Blustery.

    High: 22 °F

    Sunny and
    Blustery

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 6.

    Low: 6 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 24.

    High: 24 °F

    Sunny

Detailed Forecast

Overnight
Snow, mainly before 5am. The snow could be heavy at times. Low around 23. Wind chill values as low as 5. Windy, with a west northwest wind 21 to 24 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 4 to 6 inches possible.
Friday
A slight chance of snow before 7am, then a chance of flurries between 7am and 8am. Mostly cloudy, then gradually becoming sunny, with a high near 30. Wind chill values as low as 10. Windy, with a west northwest wind 17 to 22 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 15. Wind chill values as low as 5. West wind 6 to 8 mph.
Saturday
Partly sunny, with a high near 28. Wind chill values as low as 5. Northwest wind 7 to 13 mph, with gusts as high as 21 mph.
Saturday Night
Partly cloudy, with a low around 12. Northwest wind 10 to 14 mph, with gusts as high as 23 mph.
Sunday
Sunny, with a high near 22. Blustery.
Sunday Night
Mostly clear, with a low around 6.
Monday
Sunny, with a high near 24.
Monday Night
Mostly clear, with a low around 10.
Tuesday
Partly sunny, with a high near 44.
Tuesday Night
Mostly cloudy, with a low around 28.
Wednesday
Mostly sunny, with a high near 46.
Wednesday Night
Mostly clear, with a low around 22.
Thursday
Mostly sunny, with a high near 47.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Hartwick IA
 41.81°N 92.37°W
10:57 pm CST Feb 19, 2026
2am CST Feb 20, 2026-6pm CST Feb 26, 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