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.

Overcast with Haze

43°F

6°C

Humidity 81%
Wind Speed NE 15 mph
Barometer 29.98 in
Dewpoint 37°F (3°C)
Visibility 4.00 mi
Wind Chill36°F (2°C)
Last update 3 Apr 1:15 pm CDT
Extended Forecast for

Hartwick IA

  • This Afternoon

    This Afternoon: A 50 percent chance of showers and thunderstorms. Cloudy, with a high near 57. East wind 11 to 14 mph, with gusts as high as 22 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 57 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Low around 37. East wind 13 to 15 mph becoming west after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 37 °F

    Showers then
    Chance
    T-storms

  • Saturday

    Saturday: A slight chance of showers before 3pm, then a slight chance of showers after 4pm. Mostly cloudy, with a high near 46. Windy, with a west wind 18 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.

    High: 46 °F

    Windy. Mostly
    Cloudy then
    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: A 10 percent chance of showers before 7pm. Partly cloudy, with a low around 31. Blustery, with a west northwest wind 13 to 18 mph, with gusts as high as 31 mph.

    Low: 31 °F

    Slight Chance
    Showers and
    Blustery then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 54. West northwest wind 10 to 14 mph, with gusts as high as 21 mph.

    High: 54 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 46.

    High: 46 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms. Cloudy, with a high near 57. East wind 11 to 14 mph, with gusts as high as 22 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Low around 37. East wind 13 to 15 mph becoming west after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
A slight chance of showers before 3pm, then a slight chance of showers after 4pm. Mostly cloudy, with a high near 46. Windy, with a west wind 18 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.
Saturday Night
A 10 percent chance of showers before 7pm. Partly cloudy, with a low around 31. Blustery, with a west northwest wind 13 to 18 mph, with gusts as high as 31 mph.
Sunday
Sunny, with a high near 54. West northwest wind 10 to 14 mph, with gusts as high as 21 mph.
Sunday Night
Mostly clear, with a low around 31.
Monday
Mostly sunny, with a high near 48.
Monday Night
Mostly cloudy, with a low around 24.
Tuesday
Partly sunny, with a high near 46.
Tuesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 36. Breezy.
Wednesday
A 30 percent chance of showers. Partly sunny, with a high near 68. Windy.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 43. Windy.
Thursday
A 50 percent chance of showers. Mostly cloudy, with a high near 62. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hartwick IA
 41.79°N 92.34°W
Last Update:
1:26 pm CDT Apr 3, 2026
Forecast Valid:
1pm CDT Apr 3, 2026-6pm CDT Apr 9, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation