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.

Overcast

18°F

-8°C

Humidity 45%
Wind Speed Calm
Barometer 30.20 in
Dewpoint 0°F (-18°C)
Visibility 10.00 mi
Last update 17 Mar 12:55 pm CDT
Extended Forecast for

Grinnell Regional Airport IA

  • This Afternoon

    This Afternoon: A chance of flurries between 4pm and 5pm, then a chance of flurries with a slight chance of snow after 5pm. Mostly cloudy, with a high near 23. Wind chill values as low as 10. South wind 6 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 10%.

    High: 23 °F

    Slight Chance
    Snow

  • Tonight

    Tonight: Snow likely, mainly before 10pm. Cloudy during the early evening, then gradual clearing, with a steady temperature around 23. South southeast wind 8 to 13 mph becoming light south after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 23 °F

    Snow Likely
    then Slight
    Chance Snow

  • Wednesday

    Wednesday: Mostly sunny, with a high near 49. Calm wind.

    High: 49 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 34. Calm wind.

    Low: 34 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 62. Calm wind becoming north northwest around 6 mph in the morning.

    High: 62 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Friday Night

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

    Low: 43 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

Detailed Forecast

This Afternoon
A chance of flurries between 4pm and 5pm, then a chance of flurries with a slight chance of snow after 5pm. Mostly cloudy, with a high near 23. Wind chill values as low as 10. South wind 6 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 10%.
Tonight
Snow likely, mainly before 10pm. Cloudy during the early evening, then gradual clearing, with a steady temperature around 23. South southeast wind 8 to 13 mph becoming light south after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Wednesday
Mostly sunny, with a high near 49. Calm wind.
Wednesday Night
Mostly cloudy, with a low around 34. Calm wind.
Thursday
Sunny, with a high near 62. Calm wind becoming north northwest around 6 mph in the morning.
Thursday Night
Partly cloudy, with a low around 40.
Friday
Mostly sunny, with a high near 69.
Friday Night
Partly cloudy, with a low around 43.
Saturday
Sunny, with a high near 72.
Saturday Night
Partly cloudy, with a low around 42.
Sunday
Partly sunny, with a high near 59. Breezy.
Sunday Night
Partly cloudy, with a low around 30.
Monday
Partly sunny, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grinnell Regional Airport IA
 41.71°N 92.75°W
Last Update:
11:17 am CDT Mar 17, 2026
Forecast Valid:
1pm CDT Mar 17, 2026-6pm CDT Mar 23, 2026
 
Forecast Discussion
 
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Additional Resources

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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