Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Grinnell IA

Flood Watch August 13, 03:43pm until August 15, 10:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch August 13, 03:43pm until August 15, 10:00am

    NOW until 10:00am Sat

    Flood Watch

  • This Afternoon

    High: 77 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely before 1am, then showers likely and possibly a thunderstorm between 1am and 5am, then a chance of showers and thunderstorms after 5am.  Mostly cloudy, with a low around 66. East wind 9 to 13 mph, with gusts as high as 21 mph.  Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 66 °F

    T-storms
    Likely

  • Friday

    Friday: Showers and thunderstorms likely, mainly before 11am.  Mostly cloudy, with a high near 84. East southeast wind around 10 mph, with gusts as high as 18 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Showers
    Likely then
    Chance
    T-storms

  • Friday Night

    Friday Night: Showers and thunderstorms likely, mainly before 2am. Some of the storms could produce heavy rainfall.  Mostly cloudy, with a low around 70. East wind 8 to 13 mph, with gusts as high as 20 mph.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 70 °F

    Chance
    T-storms then
    Heavy Rain

  • Saturday

    Saturday: A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm.  Mostly cloudy, with a high near 87. South wind around 7 mph becoming west northwest in the afternoon.  Chance of precipitation is 20%.

    High: 87 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 68. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 82.

    High: 82 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 77. East wind around 9 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely before 1am, then showers likely and possibly a thunderstorm between 1am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 66. East wind 9 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
Showers and thunderstorms likely, mainly before 11am. Mostly cloudy, with a high near 84. East southeast wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and thunderstorms likely, mainly before 2am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 70. East wind 8 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm. Mostly cloudy, with a high near 87. South wind around 7 mph becoming west northwest in the afternoon. Chance of precipitation is 20%.
Saturday Night
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 68. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82.
Sunday Night
Partly cloudy, with a low around 61.
Monday
Sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 61.
Tuesday
Mostly sunny, with a high near 83.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Wednesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
Grinnell IA
 41.75°N 92.75°W
3:36 pm CDT Aug 13, 2026
3pm CDT Aug 13, 2026-6pm CDT Aug 19, 2026
 
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Additional Resources

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