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

47°F

8°C

Humidity 39%
Wind Speed N 15 G 22 mph
Barometer 30.06 in
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 1 Apr 12:15 am CDT
Extended Forecast for

3 Miles NNW Hartwick IA

  • Overnight

    Overnight: A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 39. North northeast wind around 11 mph, with gusts as high as 23 mph.

    Low: 39 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers, mainly after 4pm. Mostly cloudy, with a high near 49. Breezy, with an east wind 13 to 17 mph, with gusts as high as 26 mph. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 49 °F

    Breezy.
    Mostly Cloudy
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers before 10pm, then showers and possibly a thunderstorm between 10pm and 4am, then showers after 4am. Low around 39. Breezy, with an east wind 15 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    Low: 39 °F

    Showers and
    Breezy

  • Thursday

    Thursday: Showers before 7am, then showers and possibly a thunderstorm between 7am and 4pm, then showers after 4pm. High near 68. Windy, with a southeast wind 15 to 23 mph becoming southwest in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 68 °F

    Showers and
    Windy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 37. Breezy, with a west wind 12 to 17 mph becoming west northwest 6 to 11 mph after midnight. Winds could gust as high as 29 mph.

    Low: 37 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Friday

    Friday: A slight chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 66. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 66 °F

    Slight Chance
    T-storms then
    Rain Likely

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 35. Breezy. Chance of precipitation is 80%.

    Low: 35 °F

    Showers and
    Breezy

  • Saturday

    Saturday: A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 47. Windy.

    High: 47 °F

    Chance
    Showers and
    Windy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 28. Windy.

    Low: 28 °F

    Mostly Cloudy
    and Windy

Detailed Forecast

Overnight
A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 39. North northeast wind around 11 mph, with gusts as high as 23 mph.
Wednesday
A 30 percent chance of showers, mainly after 4pm. Mostly cloudy, with a high near 49. Breezy, with an east wind 13 to 17 mph, with gusts as high as 26 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Showers before 10pm, then showers and possibly a thunderstorm between 10pm and 4am, then showers after 4am. Low around 39. Breezy, with an east wind 15 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Thursday
Showers before 7am, then showers and possibly a thunderstorm between 7am and 4pm, then showers after 4pm. High near 68. Windy, with a southeast wind 15 to 23 mph becoming southwest in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday Night
Partly cloudy, with a low around 37. Breezy, with a west wind 12 to 17 mph becoming west northwest 6 to 11 mph after midnight. Winds could gust as high as 29 mph.
Friday
A slight chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 66. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 35. Breezy. Chance of precipitation is 80%.
Saturday
A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 47. Windy.
Saturday Night
Mostly cloudy, with a low around 28. Windy.
Sunday
Sunny, with a high near 50. Breezy.
Sunday Night
Mostly clear, with a low around 29.
Monday
Sunny, with a high near 60.
Monday Night
Partly cloudy, with a low around 35.
Tuesday
Partly sunny, with a high near 58.
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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:
10:13 pm CDT Mar 31, 2026
Forecast Valid:
12am CDT Apr 1, 2026-6pm CDT Apr 7, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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