Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Fair

59°F

15°C

Humidity 36%
Wind Speed Calm
Barometer 29.92 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 29 Mar 7:35 pm CDT
Extended Forecast for

3 Miles NNW Hartwick IA

  • Tonight

    Tonight: Mostly clear, with a low around 45. South wind 5 to 10 mph.

    Low: 45 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 83. Light south wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 20 mph.

    High: 83 °F

    Sunny

  • Monday Night

    Monday Night: A chance of rain and thunderstorms before 1am, then rain likely and possibly a thunderstorm between 1am and 4am, then rain likely after 4am.  Mostly cloudy, with a low around 56. South southwest wind 10 to 14 mph, with gusts as high as 23 mph.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 56 °F

    Chance
    T-storms then
    Rain Likely

  • Tuesday

    Tuesday: A chance of rain before 1pm, then a chance of rain and thunderstorms between 1pm and 4pm, then a chance of rain after 4pm.  Partly sunny, with a high near 75. Windy, with a south southwest wind 14 to 22 mph becoming north northwest in the afternoon. Winds could gust as high as 30 mph.  Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Chance Rain
    and Breezy
    then Chance
    T-storms and
    Windy

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers before 1am.  Mostly cloudy, with a low around 35. Breezy, with a north wind 13 to 20 mph, with gusts as high as 32 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 35 °F

    Chance
    Showers and
    Breezy

  • Wednesday

    Wednesday: A 40 percent chance of showers after 1pm.  Mostly cloudy, with a high near 46. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 46 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Rain and snow.  Low around 31. Blustery.  Chance of precipitation is 80%.

    Low: 31 °F

    Rain/Snow and
    Blustery

  • Thursday

    Thursday: Rain and snow likely, becoming all rain after 1pm.  Mostly cloudy, with a high near 46. Breezy.  Chance of precipitation is 60%.

    High: 46 °F

    Rain/Snow
    Likely and
    Breezy

  • Thursday Night

    Thursday Night: A 30 percent chance of rain before 1am.  Mostly cloudy, with a low around 32.

    Low: 32 °F

    Chance Rain

Detailed Forecast

Tonight
Mostly clear, with a low around 45. South wind 5 to 10 mph.
Monday
Sunny, with a high near 83. Light south wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 20 mph.
Monday Night
A chance of rain and thunderstorms before 1am, then rain likely and possibly a thunderstorm between 1am and 4am, then rain likely after 4am. Mostly cloudy, with a low around 56. South southwest wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of rain before 1pm, then a chance of rain and thunderstorms between 1pm and 4pm, then a chance of rain after 4pm. Partly sunny, with a high near 75. Windy, with a south southwest wind 14 to 22 mph becoming north northwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 35. Breezy, with a north wind 13 to 20 mph, with gusts as high as 32 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A 40 percent chance of showers after 1pm. Mostly cloudy, with a high near 46. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain and snow. Low around 31. Blustery. Chance of precipitation is 80%.
Thursday
Rain and snow likely, becoming all rain after 1pm. Mostly cloudy, with a high near 46. Breezy. Chance of precipitation is 60%.
Thursday Night
A 30 percent chance of rain before 1am. Mostly cloudy, with a low around 32.
Friday
A 30 percent chance of rain after 1pm. Partly sunny, with a high near 58.
Friday Night
Rain likely. Mostly cloudy, with a low around 45. Chance of precipitation is 60%.
Saturday
Rain likely. Mostly cloudy, with a high near 57. Breezy. Chance of precipitation is 70%.
Saturday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 34. Breezy.
Sunday
Mostly sunny, with a high near 51. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Hartwick IA
 41.81°N 92.37°W
6:12 pm CDT Mar 29, 2026
7pm CDT Mar 29, 2026-6pm CDT Apr 5, 2026
 
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Additional Resources

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