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

44°F

7°C

Humidity 55%
Wind Speed Calm
Barometer 29.83 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 27 Feb 9:15 am CST
Extended Forecast for

3 Miles NNW Hartwick IA

  • Today

    Today: Sunny, with a high near 59. Breezy, with a southwest wind 10 to 18 mph becoming west northwest in the afternoon. Winds could gust as high as 31 mph.

    High: 59 °F

    Sunny then
    Sunny and
    Breezy

  • Tonight

    Tonight: Increasing clouds, with a low around 25. West northwest wind 6 to 9 mph becoming north northeast after midnight. Winds could gust as high as 18 mph.

    Low: 25 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A slight chance of snow between 11am and noon. Partly sunny, with a high near 37. Northeast wind 7 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 37 °F

    Slight Chance
    Snow then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 15. Wind chill values as low as 5. North northeast wind 8 to 10 mph, with gusts as high as 18 mph.

    Low: 15 °F

    Partly Cloudy

  • Sunday

    Sunday: A 50 percent chance of snow after noon. Mostly cloudy, with a high near 30. East wind 8 to 10 mph. New snow accumulation of less than one inch possible.

    High: 30 °F

    Partly Sunny
    then Chance
    Snow

  • Sunday Night

    Sunday Night: A 50 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 18.

    Low: 18 °F

    Chance Snow
    then Slight
    Chance Snow

  • Monday

    Monday: Mostly cloudy, with a high near 38.

    High: 38 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A 40 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 27.

    Low: 27 °F

    Chance Rain

  • Tuesday

    Tuesday: A chance of rain or freezing rain before noon, then a chance of rain. Mostly cloudy, with a high near 39. Chance of precipitation is 40%.

    High: 39 °F

    Chance
    Rain/Freezing
    Rain then
    Chance Rain

Detailed Forecast

Today
Sunny, with a high near 59. Breezy, with a southwest wind 10 to 18 mph becoming west northwest in the afternoon. Winds could gust as high as 31 mph.
Tonight
Increasing clouds, with a low around 25. West northwest wind 6 to 9 mph becoming north northeast after midnight. Winds could gust as high as 18 mph.
Saturday
A slight chance of snow between 11am and noon. Partly sunny, with a high near 37. Northeast wind 7 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 15. Wind chill values as low as 5. North northeast wind 8 to 10 mph, with gusts as high as 18 mph.
Sunday
A 50 percent chance of snow after noon. Mostly cloudy, with a high near 30. East wind 8 to 10 mph. New snow accumulation of less than one inch possible.
Sunday Night
A 50 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 18.
Monday
Mostly cloudy, with a high near 38.
Monday Night
A 40 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 27.
Tuesday
A chance of rain or freezing rain before noon, then a chance of rain. Mostly cloudy, with a high near 39. Chance of precipitation is 40%.
Tuesday Night
Partly cloudy, with a low around 29.
Wednesday
A 50 percent chance of rain. Partly sunny, with a high near 45.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 35. Chance of precipitation is 60%.
Thursday
A 40 percent chance of rain. Partly sunny, with a high near 53.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Hartwick IA
 41.81°N 92.37°W
Last Update:
6:32 am CST Feb 27, 2026
Forecast Valid:
9am CST Feb 27, 2026-6pm CST Mar 5, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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