National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Marshalltown, Marshalltown Municipal Airport (KMIW)

Lat: 42.11°NLon: 92.92°WElev: 971ft.

Fair

13°F

-11°C

Humidity 100%
Wind Speed Calm
Barometer 29.91 in (1014.1 mb)
Dewpoint 13°F (-11°C)
Visibility 7.00 mi
Last update 6 Dec 6:53 am CST
Extended Forecast for

Grundy Center IA

Winter Storm Warning December 6, 03:00pm until December 7, 06:00am
Click here for hazard details and duration
Winter Storm Warning

  • Today

    Today: Snow likely, mainly after 5pm. Mostly cloudy, with a high near 23. Calm wind becoming east 5 to 9 mph in the afternoon. Chance of precipitation is 60%. Total daytime snow accumulation of less than one inch possible.

    High: 23 °F

    Mostly Cloudy
    then Snow
    Likely

  • Tonight

    Tonight: Snow, mainly before 1am. The snow could be heavy at times. Low around 10. Wind chill values as low as zero. East wind 10 to 14 mph becoming north after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    Low: 10 °F

    Heavy Snow
    then Snow
    Likely

  • Sunday

    Sunday: Mostly sunny, with a temperature falling to around 5 by 5pm. Wind chill values as low as -5. North wind 7 to 13 mph, with gusts as high as 22 mph.

    High: 14 °F⇓

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a temperature falling to near 0 by 8pm, then rising to around 5 during the remainder of the night. Wind chill values as low as -10. North northwest wind around 6 mph becoming calm.

    Low: 0 °F⇑

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 25. South wind 6 to 11 mph.

    High: 25 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 14.

    Low: 14 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 39.

    High: 39 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 20. Windy.

    Low: 20 °F

    Chance Rain
    and Windy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 27. Windy.

    High: 27 °F

    Mostly Cloudy
    and Windy

Detailed Forecast

Today
Snow likely, mainly after 5pm. Mostly cloudy, with a high near 23. Calm wind becoming east 5 to 9 mph in the afternoon. Chance of precipitation is 60%. Total daytime snow accumulation of less than one inch possible.
Tonight
Snow, mainly before 1am. The snow could be heavy at times. Low around 10. Wind chill values as low as zero. East wind 10 to 14 mph becoming north after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Sunday
Mostly sunny, with a temperature falling to around 5 by 5pm. Wind chill values as low as -5. North wind 7 to 13 mph, with gusts as high as 22 mph.
Sunday Night
Mostly cloudy, with a temperature falling to near 0 by 8pm, then rising to around 5 during the remainder of the night. Wind chill values as low as -10. North northwest wind around 6 mph becoming calm.
Monday
Partly sunny, with a high near 25. South wind 6 to 11 mph.
Monday Night
Mostly cloudy, with a low around 14.
Tuesday
Mostly cloudy, with a high near 39.
Tuesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 20. Windy.
Wednesday
Mostly cloudy, with a high near 27. Windy.
Wednesday Night
Mostly cloudy, with a low around 10.
Thursday
A 30 percent chance of snow. Mostly cloudy, with a high near 20.
Thursday Night
Mostly cloudy, with a low around 6.
Friday
Partly sunny, with a high near 13.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grundy Center IA
 42.36°N 92.76°W
Last Update:
5:16 am CST Dec 6, 2025
Forecast Valid:
7am CST Dec 6, 2025-6pm CST Dec 12, 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