Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Fair

51°F

11°C

Humidity 60%
Wind Speed SE 6 mph
Barometer 29.89 in
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 30 Mar 1:55 am CDT
Extended Forecast for

Grinnell IA

  • Overnight

    Overnight: Mostly clear, with a steady temperature around 50. South southeast wind around 7 mph.

    Low: 50 °F

    Mostly Clear

  • Monday

    Monday: Increasing clouds, with a high near 83. South wind 6 to 15 mph, with gusts as high as 23 mph.

    High: 83 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 4am, then a slight chance of showers.  Mostly cloudy, with a low around 60. South southwest wind 11 to 15 mph, with gusts as high as 26 mph.  Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 4pm, then a chance of showers after 4pm.  Partly sunny, with a temperature rising to near 68 by 10am, then falling to around 60 during the remainder of the day. Breezy, with a south southwest wind 14 to 20 mph becoming north in the afternoon. Winds could gust as high as 30 mph.  Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 68 °F

    Chance
    Showers and
    Breezy

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before 1am.  Mostly cloudy, with a low around 36. Breezy, with a north wind 13 to 18 mph, with gusts as high as 28 mph.

    Low: 36 °F

    Slight Chance
    Showers and
    Breezy

  • Wednesday

    Wednesday: Showers likely, mainly after 1pm.  Mostly cloudy, with a high near 45. Breezy.  Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    High: 45 °F

    Chance
    Showers then
    Showers
    Likely and
    Breezy

  • Wednesday Night

    Wednesday Night: Showers.  Low around 34. Breezy.  Chance of precipitation is 100%.

    Low: 34 °F

    Showers and
    Breezy

  • Thursday

    Thursday: Showers.  High near 50. Chance of precipitation is 90%.

    High: 50 °F

    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of rain before 1am.  Mostly cloudy, with a low around 33.

    Low: 33 °F

    Chance Rain

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 50. South southeast wind around 7 mph.
Monday
Increasing clouds, with a high near 83. South wind 6 to 15 mph, with gusts as high as 23 mph.
Monday Night
A chance of showers and thunderstorms before 4am, then a slight chance of showers. Mostly cloudy, with a low around 60. South southwest wind 11 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 4pm, then a chance of showers after 4pm. Partly sunny, with a temperature rising to near 68 by 10am, then falling to around 60 during the remainder of the day. Breezy, with a south southwest wind 14 to 20 mph becoming north in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 36. Breezy, with a north wind 13 to 18 mph, with gusts as high as 28 mph.
Wednesday
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 45. Breezy. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Showers. Low around 34. Breezy. Chance of precipitation is 100%.
Thursday
Showers. High near 50. Chance of precipitation is 90%.
Thursday Night
A 30 percent chance of rain before 1am. Mostly cloudy, with a low around 33.
Friday
A 50 percent chance of rain. Mostly cloudy, with a high near 57.
Friday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 39. Breezy. Chance of precipitation is 70%.
Saturday
A 50 percent chance of rain. Mostly cloudy, with a high near 50. Windy.
Saturday Night
Mostly cloudy, with a low around 30. Windy.
Sunday
Mostly sunny, with a high near 50. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Grinnell IA
 41.75°N 92.69°W
1:27 am CDT Mar 30, 2026
2am CDT Mar 30, 2026-6pm CDT Apr 5, 2026
 
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Additional Resources

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