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

47°F

8°C

Humidity 94%
Wind Speed Calm
Barometer 29.83 in
Dewpoint 46°F (8°C)
Visibility 1.75 mi
Last update 25 Nov 12:15 am CST
Extended Forecast for

2 Miles SW Chelsea IA

Dense Fog Advisory until November 25, 10:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until November 25, 10:00am

    NOW until 10:00am Tue

    Dense Fog Advisory

  • Overnight

    Low: 45 °F

    Slight Chance
    Rain and Fog

  • Tuesday

    Tuesday: A chance of rain between noon and 4pm. Widespread fog, mainly before 9am. Otherwise, mostly cloudy, with a high near 53. Breezy, with a light and variable wind becoming west 11 to 16 mph in the morning. Winds could gust as high as 30 mph. Chance of precipitation is 40%.

    High: 53 °F

    Fog then
    Chance Rain
    and Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy during the early evening, then becoming cloudy, with a low around 28. Windy, with a west northwest wind 16 to 23 mph, with gusts as high as 38 mph.

    Low: 28 °F

    Becoming
    Cloudy and
    Windy

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 36. Windy, with a west northwest wind 14 to 22 mph, with gusts as high as 37 mph.

    High: 36 °F

    Decreasing
    Clouds and
    Windy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 20. West northwest wind 9 to 11 mph, with gusts as high as 21 mph.

    Low: 20 °F

    Mostly Clear

  • Thanksgiving Day

    Thanksgiving Day: Sunny, with a high near 33.

    High: 33 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 15.

    Low: 15 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of snow after noon. Partly sunny, with a high near 31.

    High: 31 °F

    Mostly Sunny
    then Slight
    Chance Snow

Detailed Forecast

Overnight
A 20 percent chance of rain before 2am. Widespread fog, mainly after 5am. Otherwise, cloudy, with a low around 45. Light south wind.
Tuesday
A chance of rain between noon and 4pm. Widespread fog, mainly before 9am. Otherwise, mostly cloudy, with a high near 53. Breezy, with a light and variable wind becoming west 11 to 16 mph in the morning. Winds could gust as high as 30 mph. Chance of precipitation is 40%.
Tuesday Night
Partly cloudy during the early evening, then becoming cloudy, with a low around 28. Windy, with a west northwest wind 16 to 23 mph, with gusts as high as 38 mph.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 36. Windy, with a west northwest wind 14 to 22 mph, with gusts as high as 37 mph.
Wednesday Night
Mostly clear, with a low around 20. West northwest wind 9 to 11 mph, with gusts as high as 21 mph.
Thanksgiving Day
Sunny, with a high near 33.
Thursday Night
Mostly clear, with a low around 15.
Friday
A 20 percent chance of snow after noon. Partly sunny, with a high near 31.
Friday Night
Snow likely. Cloudy, with a low around 23. Chance of precipitation is 70%.
Saturday
A 40 percent chance of snow. Mostly cloudy, with a high near 33.
Saturday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 21.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 32. Chance of precipitation is 40%.
Sunday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 16.
Monday
Partly sunny, 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:
2 Miles SW Chelsea IA
 41.9°N 92.42°W
Last Update:
12:26 am CST Nov 25, 2025
Forecast Valid:
12am CST Nov 25, 2025-6pm CST Dec 1, 2025
 
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