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.

Light Snow

41°F

5°C

Humidity 95%
Wind Speed Calm
Barometer 29.72 in
Dewpoint 40°F (4°C)
Visibility 0.25 mi
Last update 26 Dec 12:15 am CST
Extended Forecast for

Grinnell Regional Airport IA

Dense Fog Advisory December 26, 12:38am until December 26, 09:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory December 26, 12:38am until December 26, 09:00am

    NOW until 9:00am Fri

    Dense Fog Advisory

  • Overnight

    Low: 40 °F

    Areas Dense
    Fog

  • Friday

    Friday: Areas of dense fog before 1pm. Otherwise, partly sunny, with a high near 47. Northwest wind 5 to 8 mph becoming calm in the afternoon.

    High: 47 °F

    Areas Dense
    Fog

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 36. Light south wind.

    Low: 36 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 54. Southeast wind 5 to 11 mph, with gusts as high as 18 mph.

    High: 54 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 35. Calm wind becoming north northwest 5 to 8 mph after midnight.

    Low: 35 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain before noon, then a chance of rain and snow. Mostly cloudy, with a high near 43. Windy. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 43 °F

    Chance Rain
    and Breezy
    then Chance
    Rain/Snow and
    Windy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 10. Windy.

    Low: 10 °F

    Mostly Cloudy
    and Windy

  • Monday

    Monday: Sunny, with a high near 20. Windy.

    High: 20 °F

    Sunny and
    Windy

Detailed Forecast

Overnight
Areas of dense fog. Otherwise, cloudy, with a low around 40. Light and variable wind.
Friday
Areas of dense fog before 1pm. Otherwise, partly sunny, with a high near 47. Northwest wind 5 to 8 mph becoming calm in the afternoon.
Friday Night
Mostly cloudy, with a low around 36. Light south wind.
Saturday
Mostly cloudy, with a high near 54. Southeast wind 5 to 11 mph, with gusts as high as 18 mph.
Saturday Night
Mostly cloudy, with a low around 35. Calm wind becoming north northwest 5 to 8 mph after midnight.
Sunday
A chance of rain before noon, then a chance of rain and snow. Mostly cloudy, with a high near 43. Windy. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Mostly cloudy, with a low around 10. Windy.
Monday
Sunny, with a high near 20. Windy.
Monday Night
Mostly clear, with a low around 11.
Tuesday
Mostly sunny, with a high near 35.
Tuesday Night
Partly cloudy, with a low around 18.
Wednesday
Partly sunny, with a high near 32.
Wednesday Night
Partly cloudy, with a low around 13.
New Year's Day
Mostly sunny, with a high near 26.
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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:
10:11 pm CST Dec 25, 2025
Forecast Valid:
12am CST Dec 26, 2025-6pm CST Jan 1, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation