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.

Fog/Mist

36°F

2°C

Humidity 95%
Wind Speed Calm
Barometer 30.09 in
Dewpoint 34°F (1°C)
Visibility 1.25 mi
Last update 25 Dec 12:15 am CST
Extended Forecast for

Montezuma IA

Dense Fog Advisory December 25, 12:32am until December 25, 09:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory December 25, 12:32am until December 25, 09:00am

    NOW until 9:00am Thu

    Dense Fog Advisory

  • Overnight

    Low: 37 °F

    Areas Dense
    Fog

  • Christmas Day

    Christmas Day: Areas of dense fog before 10am. Otherwise, cloudy, with a high near 43. East wind 6 to 10 mph.

    High: 43 °F

    Areas Dense
    Fog then
    Cloudy

  • Thursday Night

    Thursday Night: A 20 percent chance of rain before midnight. Cloudy, with a low around 40. East wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 18 mph.

    Low: 40 °F

    Slight Chance
    Rain then
    Cloudy

  • Friday

    Friday: Partly sunny, with a high near 50. Northwest wind 3 to 6 mph.

    High: 50 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 37. Calm wind becoming southeast around 5 mph after midnight.

    Low: 37 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 54.

    High: 54 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of rain and snow before noon, then a slight chance of snow. Mostly cloudy, with a high near 39. Windy. Chance of precipitation is 20%.

    High: 39 °F

    Slight Chance
    Rain/Snow and
    Windy

Detailed Forecast

Overnight
Areas of dense fog. Otherwise, cloudy, with a low around 37. North wind 3 to 6 mph.
Christmas Day
Areas of dense fog before 10am. Otherwise, cloudy, with a high near 43. East wind 6 to 10 mph.
Thursday Night
A 20 percent chance of rain before midnight. Cloudy, with a low around 40. East wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 18 mph.
Friday
Partly sunny, with a high near 50. Northwest wind 3 to 6 mph.
Friday Night
Mostly cloudy, with a low around 37. Calm wind becoming southeast around 5 mph after midnight.
Saturday
Mostly cloudy, with a high near 54.
Saturday Night
Mostly cloudy, with a low around 32.
Sunday
A slight chance of rain and snow before noon, then a slight chance of snow. Mostly cloudy, with a high near 39. Windy. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 11. Windy.
Monday
Sunny, with a high near 22. Blustery.
Monday Night
Partly cloudy, with a low around 12.
Tuesday
Partly sunny, with a high near 34.
Tuesday Night
Mostly cloudy, with a low around 18.
Wednesday
Partly sunny, with a high near 32.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Montezuma IA
 41.57°N 92.52°W
Last Update:
10:16 pm CST Dec 24, 2025
Forecast Valid:
12am CST Dec 25, 2025-6pm CST Dec 31, 2025
 
Forecast Discussion
 
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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