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.

Fog/Mist

67°F

19°C

Humidity 95%
Wind Speed E 3 mph
Barometer 30.09 in
Dewpoint 66°F (19°C)
Visibility 5.00 mi
Last update 6 Jul 6:35 am CDT
Extended Forecast for

Hartwick IA

  • Today

    Today: Patchy fog before 8am. Otherwise, sunny, with a high near 86. Calm wind becoming east northeast around 5 mph.

    High: 86 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 61. Light and variable wind.

    Low: 61 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 87. Calm wind.

    High: 87 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 63. Light south southeast wind.

    Low: 63 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 89. South southwest wind 3 to 7 mph.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Partly Cloudy
    then Chance
    T-storms

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.

    High: 87 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 50%.

    Low: 65 °F

    Chance
    T-storms

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84.

    High: 84 °F

    Partly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Patchy fog before 8am. Otherwise, sunny, with a high near 86. Calm wind becoming east northeast around 5 mph.
Tonight
Mostly clear, with a low around 61. Light and variable wind.
Tuesday
Sunny, with a high near 87. Calm wind.
Tuesday Night
Mostly clear, with a low around 63. Light south southeast wind.
Wednesday
Sunny, with a high near 89. South southwest wind 3 to 7 mph.
Wednesday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 50%.
Friday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84.
Friday Night
Mostly cloudy, with a low around 63.
Saturday
Mostly sunny, with a high near 87.
Saturday Night
Partly cloudy, with a low around 64.
Sunday
Sunny, with a high near 90.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hartwick IA
 41.79°N 92.34°W
Last Update:
5:57 am CDT Jul 6, 2026
Forecast Valid:
6am CDT Jul 6, 2026-6pm CDT Jul 12, 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