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

56°F

13°C

Humidity 78%
Wind Speed S 13 mph
Barometer 29.94 in
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 12 Apr 1:35 am CDT
Extended Forecast for

3 Miles NNW Hartwick IA

  • Overnight

    Overnight: A slight chance of showers and thunderstorms between 3am and 5am. Mostly cloudy, with a low around 51. South wind around 14 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.

    Low: 51 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly before 4pm. Mostly cloudy, with a high near 71. Windy, with a south southwest wind 15 to 23 mph, with gusts as high as 34 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 71 °F

    Windy. Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: A slight chance of showers between 7pm and 9pm. Mostly cloudy, with a low around 58. Breezy, with a south southwest wind 10 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 10%.

    Low: 58 °F

    Slight Chance
    Showers and
    Breezy then
    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 79. Breezy, with a south wind 8 to 18 mph, with gusts as high as 25 mph.

    High: 79 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms and
    Breezy

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63. Breezy, with a south wind 10 to 16 mph, with gusts as high as 26 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Chance
    T-storms and
    Breezy

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 82. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.

    Low: 58 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 76. Chance of precipitation is 60%.

    High: 76 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 53.

    Low: 53 °F

    Chance
    T-storms

Detailed Forecast

Overnight
A slight chance of showers and thunderstorms between 3am and 5am. Mostly cloudy, with a low around 51. South wind around 14 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.
Sunday
Showers and thunderstorms likely, mainly before 4pm. Mostly cloudy, with a high near 71. Windy, with a south southwest wind 15 to 23 mph, with gusts as high as 34 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A slight chance of showers between 7pm and 9pm. Mostly cloudy, with a low around 58. Breezy, with a south southwest wind 10 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 10%.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 79. Breezy, with a south wind 8 to 18 mph, with gusts as high as 25 mph.
Monday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63. Breezy, with a south wind 10 to 16 mph, with gusts as high as 26 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 82. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.
Wednesday
A chance of showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 76. Chance of precipitation is 60%.
Wednesday Night
A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 53.
Thursday
Sunny, with a high near 78.
Thursday Night
Mostly clear, with a low around 57.
Friday
Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 77. Breezy. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 44. Chance of precipitation is 60%.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Hartwick IA
 41.81°N 92.37°W
Last Update:
1:26 am CDT Apr 12, 2026
Forecast Valid:
1am CDT Apr 12, 2026-6pm CDT Apr 18, 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