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.

Overcast

28°F

-2°C

Humidity 72%
Wind Speed SE 9 mph
Barometer 30.32 in
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 2 Mar 3:55 am CST
Extended Forecast for

3 Miles NNW Hartwick IA

  • Today

    Today: Cloudy, with a high near 43. Southeast wind around 7 mph.

    High: 43 °F

    Cloudy

  • Tonight

    Tonight: A chance of drizzle, mainly after 1am. Mostly cloudy, with a low around 34. Southeast wind 3 to 6 mph.

    Low: 34 °F

    Chance
    Drizzle

  • Tuesday

    Tuesday: A chance of drizzle. Mostly cloudy, with a high near 45. East northeast wind around 6 mph.

    High: 45 °F

    Chance
    Drizzle

  • Tuesday Night

    Tuesday Night: A 40 percent chance of rain. Partly cloudy, with a low around 34. East northeast wind around 6 mph. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 34 °F

    Chance Rain

  • Wednesday

    Wednesday: A 50 percent chance of rain. Partly sunny, with a high near 48. East northeast wind 5 to 7 mph. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 48 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly after midnight. Mostly cloudy, with a low around 38. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Rain Likely

  • Thursday

    Thursday: A 30 percent chance of rain before noon. Partly sunny, with a high near 57.

    High: 57 °F

    Chance Rain
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: A 50 percent chance of rain after midnight. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy
    then Chance
    Rain

  • Friday

    Friday: Rain. High near 65. Chance of precipitation is 90%.

    High: 65 °F

    Rain

Detailed Forecast

Today
Cloudy, with a high near 43. Southeast wind around 7 mph.
Tonight
A chance of drizzle, mainly after 1am. Mostly cloudy, with a low around 34. Southeast wind 3 to 6 mph.
Tuesday
A chance of drizzle. Mostly cloudy, with a high near 45. East northeast wind around 6 mph.
Tuesday Night
A 40 percent chance of rain. Partly cloudy, with a low around 34. East northeast wind around 6 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
A 50 percent chance of rain. Partly sunny, with a high near 48. East northeast wind 5 to 7 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain likely, mainly after midnight. Mostly cloudy, with a low around 38. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A 30 percent chance of rain before noon. Partly sunny, with a high near 57.
Thursday Night
A 50 percent chance of rain after midnight. Mostly cloudy, with a low around 42.
Friday
Rain. High near 65. Chance of precipitation is 90%.
Friday Night
Rain likely, mainly before midnight. Mostly cloudy, with a low around 37. Chance of precipitation is 60%.
Saturday
Partly sunny, with a high near 54.
Saturday Night
Mostly clear, with a low around 35.
Sunday
Sunny, with a high near 62.
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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:
2:27 am CST Mar 2, 2026
Forecast Valid:
4am CST Mar 2, 2026-6pm CDT Mar 8, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation