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.

Light Rain

43°F

6°C

Humidity 86%
Wind Speed N 13 G 17 mph
Barometer 30.14 in
Dewpoint 39°F (4°C)
Visibility 7.00 mi
Wind Chill36°F (2°C)
Last update 10 Apr 12:35 am CDT
Extended Forecast for

Grinnell Regional Airport IA

  • Overnight

    Overnight: Showers and possibly a thunderstorm before 2am, then a chance of showers between 2am and 4am. Some of the storms could produce heavy rainfall. Low around 39. North wind 9 to 11 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 39 °F

    Heavy Rain

  • Friday

    Friday: Mostly sunny, with a high near 56. North wind 5 to 11 mph, with gusts as high as 18 mph.

    High: 56 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 37. Calm wind.

    Low: 37 °F

    Mostly Clear

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 1pm. Increasing clouds, with a high near 60. Breezy, with a southeast wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 60 °F

    Chance
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Mostly cloudy, with a low around 55. Breezy, with a south southeast wind 15 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Breezy.
    Chance
    T-storms then
    Showers
    Likely

  • Sunday

    Sunday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 71. Windy. 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

    Showers
    Likely and
    Windy

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Breezy. Chance of precipitation is 40%.

    Low: 61 °F

    Chance
    Showers and
    Breezy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80. Breezy.

    High: 80 °F

    Partly Sunny
    then Slight
    Chance
    T-storms and
    Breezy

  • Monday Night

    Monday Night: A 40 percent chance of showers. Partly cloudy, with a low around 63.

    Low: 63 °F

    Chance
    Showers

Detailed Forecast

Overnight
Showers and possibly a thunderstorm before 2am, then a chance of showers between 2am and 4am. Some of the storms could produce heavy rainfall. Low around 39. North wind 9 to 11 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Mostly sunny, with a high near 56. North wind 5 to 11 mph, with gusts as high as 18 mph.
Friday Night
Mostly clear, with a low around 37. Calm wind.
Saturday
A chance of showers, with thunderstorms also possible after 1pm. Increasing clouds, with a high near 60. Breezy, with a southeast wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Mostly cloudy, with a low around 55. Breezy, with a south southeast wind 15 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 71. Windy. 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 chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Breezy. Chance of precipitation is 40%.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80. Breezy.
Monday Night
A 40 percent chance of showers. Partly cloudy, with a low around 63.
Tuesday
A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 80. Breezy.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 52. Chance of precipitation is 70%.
Wednesday
A 40 percent chance of showers. Partly sunny, with a high near 69.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
Sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
Grinnell Regional Airport IA
 41.71°N 92.75°W
Last Update:
10:26 pm CDT Apr 9, 2026
Forecast Valid:
12am CDT Apr 10, 2026-6pm CDT Apr 16, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

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Chance of Precipitation