National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Fair

21°F

-6°C

Humidity 80%
Wind Speed NE 9 mph
Barometer 30.40 in
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Wind Chill11°F (-12°C)
Last update 1 Mar 2:35 am CST
Extended Forecast for

Grinnell Regional Airport IA

  • Overnight

    Overnight: Mostly clear, with a steady temperature around 20. Calm wind becoming east northeast around 5 mph.

    Low: 20 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 35. East wind 5 to 10 mph.

    High: 35 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 25. Calm wind becoming east southeast around 6 mph after midnight.

    Low: 25 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 42. East southeast wind 5 to 10 mph becoming light southeast in the afternoon.

    High: 42 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Rain likely, mainly after midnight. Cloudy, with a low around 34. Calm wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 34 °F

    Chance Rain
    then Rain
    Likely

  • Tuesday

    Tuesday: Rain likely before noon, then a chance of showers after noon. Mostly cloudy, with a high near 46. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 46 °F

    Rain Likely

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 38.

    Low: 38 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 51. Chance of precipitation is 60%.

    High: 51 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain. Mostly cloudy, with a low around 37.

    Low: 37 °F

    Chance Rain

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 20. Calm wind becoming east northeast around 5 mph.
Sunday
Increasing clouds, with a high near 35. East wind 5 to 10 mph.
Sunday Night
Mostly cloudy, with a low around 25. Calm wind becoming east southeast around 6 mph after midnight.
Monday
Mostly cloudy, with a high near 42. East southeast wind 5 to 10 mph becoming light southeast in the afternoon.
Monday Night
Rain likely, mainly after midnight. Cloudy, with a low around 34. Calm wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Rain likely before noon, then a chance of showers after noon. Mostly cloudy, with a high near 46. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 38.
Wednesday
Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 51. Chance of precipitation is 60%.
Wednesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 37.
Thursday
A 30 percent chance of rain before noon. Mostly cloudy, with a high near 58.
Thursday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 43.
Friday
Rain likely. Mostly cloudy, with a high near 61. Chance of precipitation is 70%.
Friday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 36.
Saturday
Mostly cloudy, with a high near 54.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grinnell Regional Airport IA
 41.71°N 92.75°W
Last Update:
2:37 am CST Mar 1, 2026
Forecast Valid:
2am CST Mar 1, 2026-6pm CST Mar 7, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation