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 and Breezy

42°F

6°C

Humidity 52%
Wind Speed NW 23 G 29 mph
Barometer 30.17 in
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 11 Mar 4:35 pm CDT
Extended Forecast for

Grinnell Regional Airport IA

  • This Afternoon

    This Afternoon: Sunny, with a high near 40. Windy, with a northwest wind around 23 mph, with gusts as high as 32 mph.

    High: 40 °F

    Sunny and
    Windy

  • Tonight

    Tonight: Mostly clear, with a low around 26. Northwest wind 8 to 13 mph becoming light west in the evening. Winds could gust as high as 18 mph.

    Low: 26 °F

    Mostly Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 54. Windy, with a light west southwest wind becoming south southwest 21 to 26 mph in the morning. Winds could gust as high as 38 mph.

    High: 54 °F

    Sunny then
    Mostly Cloudy
    and Windy

  • Thursday Night

    Thursday Night: A 40 percent chance of rain, mainly before 1am. Mostly cloudy, with a low around 34. Windy, with a south southwest wind 24 to 26 mph becoming west after midnight. Winds could gust as high as 44 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 34 °F

    Chance Rain
    and Windy

  • Friday

    Friday: Mostly sunny, with a high near 46. Windy, with a west northwest wind 17 to 26 mph, with gusts as high as 40 mph.

    High: 46 °F

    Mostly Sunny
    and Windy

  • Friday Night

    Friday Night: A 20 percent chance of snow after 1am. Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Saturday

    Saturday: A slight chance of snow before 1pm, then a slight chance of rain and snow. Cloudy, with a high near 45. Chance of precipitation is 20%.

    High: 45 °F

    Slight Chance
    Snow then
    Slight Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: A chance of rain and snow before 1am, then rain likely. Some thunder is also possible. Cloudy, with a low around 32. Breezy. Chance of precipitation is 70%.

    Low: 32 °F

    Chance
    Rain/Snow
    then
    Rain/Snow
    Likely and
    Breezy

  • Sunday

    Sunday: Rain and snow. High near 40. Windy. Chance of precipitation is 80%.

    High: 40 °F

    Rain/Snow and
    Windy

Detailed Forecast

This Afternoon
Sunny, with a high near 40. Windy, with a northwest wind around 23 mph, with gusts as high as 32 mph.
Tonight
Mostly clear, with a low around 26. Northwest wind 8 to 13 mph becoming light west in the evening. Winds could gust as high as 18 mph.
Thursday
Increasing clouds, with a high near 54. Windy, with a light west southwest wind becoming south southwest 21 to 26 mph in the morning. Winds could gust as high as 38 mph.
Thursday Night
A 40 percent chance of rain, mainly before 1am. Mostly cloudy, with a low around 34. Windy, with a south southwest wind 24 to 26 mph becoming west after midnight. Winds could gust as high as 44 mph. New precipitation amounts of less than a tenth of an inch possible.
Friday
Mostly sunny, with a high near 46. Windy, with a west northwest wind 17 to 26 mph, with gusts as high as 40 mph.
Friday Night
A 20 percent chance of snow after 1am. Mostly cloudy, with a low around 29.
Saturday
A slight chance of snow before 1pm, then a slight chance of rain and snow. Cloudy, with a high near 45. Chance of precipitation is 20%.
Saturday Night
A chance of rain and snow before 1am, then rain likely. Some thunder is also possible. Cloudy, with a low around 32. Breezy. Chance of precipitation is 70%.
Sunday
Rain and snow. High near 40. Windy. Chance of precipitation is 80%.
Sunday Night
A 30 percent chance of snow before 1am. Mostly cloudy, with a low around 9. Windy.
Monday
Mostly sunny, with a high near 22. Blustery.
Monday Night
Mostly clear, with a low around 7.
Tuesday
Mostly cloudy, with a high near 32.
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:
3:07 pm CDT Mar 11, 2026
Forecast Valid:
4pm CDT Mar 11, 2026-6pm CDT Mar 17, 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