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.

Fair

75°F

24°C

Humidity 73%
Wind Speed SE 8 mph
Barometer 29.80 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 16 May 7:35 pm CDT
Extended Forecast for

2 Miles W Grinnell Regional Airport IA

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2am. Low around 61. Southeast wind 6 to 8 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 61 °F

    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms between 8am and 9am. High near 86. Windy, with a southeast wind 9 to 14 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Showers and
    Breezy then
    Mostly Cloudy
    and Windy

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms between midnight and 1am, then showers and possibly a thunderstorm after 1am. Low around 66. Windy, with a south wind 11 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 66 °F

    Partly Cloudy
    and Windy
    then Showers
    and Breezy

  • Monday

    Monday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 85. Breezy, with a south wind 15 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 85 °F

    Showers
    Likely and
    Breezy

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 60. Breezy, with a south wind 15 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    Low: 60 °F

    Showers and
    Breezy

  • Tuesday

    Tuesday: Partly sunny, with a high near 71. Breezy.

    High: 71 °F

    Partly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

Detailed Forecast

Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2am. Low around 61. Southeast wind 6 to 8 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday
Showers and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms between 8am and 9am. High near 86. Windy, with a southeast wind 9 to 14 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers and thunderstorms between midnight and 1am, then showers and possibly a thunderstorm after 1am. Low around 66. Windy, with a south wind 11 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 85. Breezy, with a south wind 15 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Showers and possibly a thunderstorm. Low around 60. Breezy, with a south wind 15 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Tuesday
Partly sunny, with a high near 71. Breezy.
Tuesday Night
Partly cloudy, with a low around 45.
Wednesday
Partly sunny, with a high near 64.
Wednesday Night
Partly cloudy, with a low around 43.
Thursday
Mostly sunny, with a high near 67.
Thursday Night
Mostly cloudy, with a low around 46.
Friday
Partly sunny, with a high near 72.
Friday Night
Partly cloudy, with a low around 50.
Saturday
Mostly sunny, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W Grinnell Regional Airport IA
 41.71°N 92.78°W
Last Update:
5:56 pm CDT May 16, 2026
Forecast Valid:
7pm CDT May 16, 2026-6pm CDT May 23, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation