Hazardous Weather Conditions

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Mostly Cloudy

50°F

10°C

Humidity 54%
Wind Speed Calm
Barometer 30.07 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 9 Apr 2:55 am CDT
Extended Forecast for

Grinnell IA

  • Overnight

    Overnight: Mostly cloudy, with a low around 40. West southwest wind 3 to 5 mph.

    Low: 40 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers before 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then showers likely and possibly a thunderstorm after 5pm.  Increasing clouds, with a high near 61. North wind around 6 mph becoming light and variable  in the afternoon.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 61 °F

    Mostly Sunny
    then Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 3am, then a slight chance of showers between 3am and 4am.  Low around 40. North northeast wind 7 to 9 mph.  Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    Low: 40 °F

    Showers

  • Friday

    Friday: Mostly sunny, with a high near 57. North northeast wind 7 to 10 mph.

    High: 57 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 38. East wind 3 to 6 mph.

    Low: 38 °F

    Mostly Clear

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 10am.  Mostly cloudy, with a high near 60. 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

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 55. Chance of precipitation is 50%.

    Low: 55 °F

    Chance
    T-storms

  • Sunday

    Sunday: Showers likely, with thunderstorms also possible after 7am.  Mostly cloudy, with a high near 71. Windy.  Chance of precipitation is 70%.

    High: 71 °F

    Showers
    Likely and
    Windy

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 60. Windy.  Chance of precipitation is 50%.

    Low: 60 °F

    Chance
    T-storms and
    Windy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 40. West southwest wind 3 to 5 mph.
Thursday
A chance of showers before 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Increasing clouds, with a high near 61. North wind around 6 mph becoming light and variable in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and possibly a thunderstorm before 3am, then a slight chance of showers between 3am and 4am. Low around 40. North northeast wind 7 to 9 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Friday
Mostly sunny, with a high near 57. North northeast wind 7 to 10 mph.
Friday Night
Mostly clear, with a low around 38. East wind 3 to 6 mph.
Saturday
A chance of showers, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 60. 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. Mostly cloudy, with a low around 55. Chance of precipitation is 50%.
Sunday
Showers likely, with thunderstorms also possible after 7am. Mostly cloudy, with a high near 71. Windy. Chance of precipitation is 70%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Windy. Chance of precipitation is 50%.
Monday
Partly sunny, with a high near 80. Windy.
Monday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 60. Breezy. Chance of precipitation is 60%.
Tuesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 74. Breezy. Chance of precipitation is 60%.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 47. Chance of precipitation is 70%.
Wednesday
A 40 percent chance of showers. Partly sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
Grinnell IA
 41.75°N 92.69°W
1:26 am CDT Apr 9, 2026
3am CDT Apr 9, 2026-6pm CDT Apr 15, 2026
 
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Additional Resources

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