Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Fair

62°F

17°C

Humidity 24%
Wind Speed S 20 mph
Barometer 30.03 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 29 Mar 12:15 pm CDT
Extended Forecast for

Grinnell Regional Airport IA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 68. Breezy, with a south wind around 17 mph, with gusts as high as 24 mph.

    High: 68 °F

    Partly Sunny
    and Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 46. South wind 5 to 9 mph becoming calm  in the evening.

    Low: 46 °F

    Mostly Clear

  • Monday

    Monday: Increasing clouds, with a high near 82. Light south wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 21 mph.

    High: 82 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 55. South wind 11 to 15 mph, with gusts as high as 23 mph.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers after 4pm.  Partly sunny, with a high near 70. Windy, with a south southwest wind 14 to 23 mph becoming north northwest in the afternoon. Winds could gust as high as 31 mph.  Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 70 °F

    Chance
    Showers and
    Windy

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before 1am.  Mostly cloudy, with a low around 35. Windy.

    Low: 35 °F

    Slight Chance
    Showers and
    Windy

  • Wednesday

    Wednesday: A 40 percent chance of showers after 1pm.  Mostly cloudy, with a high near 48. Breezy.

    High: 48 °F

    Mostly Cloudy
    then Chance
    Showers and
    Breezy

  • Wednesday Night

    Wednesday Night: Rain, possibly mixed with snow showers.  Low around 31. Chance of precipitation is 80%.

    Low: 31 °F

    Rain/Snow

  • Thursday

    Thursday: Showers likely.  Cloudy, with a high near 44. Chance of precipitation is 60%.

    High: 44 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Partly sunny, with a high near 68. Breezy, with a south wind around 17 mph, with gusts as high as 24 mph.
Tonight
Mostly clear, with a low around 46. South wind 5 to 9 mph becoming calm in the evening.
Monday
Increasing clouds, with a high near 82. Light south wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 21 mph.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 55. South wind 11 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers after 4pm. Partly sunny, with a high near 70. Windy, with a south southwest wind 14 to 23 mph becoming north northwest in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 50%. 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 35. Windy.
Wednesday
A 40 percent chance of showers after 1pm. Mostly cloudy, with a high near 48. Breezy.
Wednesday Night
Rain, possibly mixed with snow showers. Low around 31. Chance of precipitation is 80%.
Thursday
Showers likely. Cloudy, with a high near 44. Chance of precipitation is 60%.
Thursday Night
A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 34.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 59.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 41. Chance of precipitation is 60%.
Saturday
Showers likely. Mostly cloudy, with a high near 54. Breezy. Chance of precipitation is 70%.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Grinnell Regional Airport IA
 41.71°N 92.75°W
12:02 pm CDT Mar 29, 2026
12pm CDT Mar 29, 2026-6pm CDT Apr 4, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database