Current conditions at

Marshalltown, Marshalltown Municipal Airport (KMIW)

Lat: 42.11°NLon: 92.92°WElev: 971ft.

Fair and Breezy

39°F

4°C

Humidity 62%
Wind Speed E 21 G 32 mph
Barometer 29.77 in (1008.9 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 14 Mar 7:53 pm CDT
Extended Forecast for

Grundy Center IA

Blizzard Warning March 15, 07:00am until March 16, 07:00am
High Wind Warning March 15, 01:00pm until March 16, 04:00am
Click here for hazard details and duration
Blizzard Warning
High Wind Warning
  • Tonight

    Tonight: A slight chance of rain, then a chance of rain and thunderstorms after 4am.  Mostly cloudy, with a temperature falling to near 39 by 10pm, then rising to around 43 during the remainder of the night. Breezy, with an east southeast wind 16 to 20 mph, with gusts as high as 29 mph.  Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 39 °F

    Chance Rain
    and Breezy

  • Sunday

    Sunday: Rain and sleet before 1pm, then rain, snow, and sleet between 1pm and 2pm, then snow after 2pm. Some thunder is also possible.  Patchy blowing snow after 2pm. Temperature rising to near 46 by 8am, then falling to around 29 during the remainder of the day. Very windy, with a south southeast wind 16 to 26 mph becoming north 29 to 39 mph in the morning. Winds could gust as high as 50 mph.  Chance of precipitation is 100%. New snow and sleet accumulation of 1 to 2 inches possible.

    High: 46 °F

    Rain and
    Windy then
    Wintry Mix
    and Patchy
    Blowing Snow

  • Sunday Night

    Sunday Night: Snow, mainly before 1am.  Widespread blowing snow. Low around 7. Wind chill values as low as -15. Very windy, with a northwest wind 37 to 40 mph, with gusts as high as 55 mph.  Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    Low: 7 °F

    Snow and
    Blowing Snow

  • Monday

    Monday: Widespread blowing snow, mainly before 10am. Cloudy, then gradually becoming mostly sunny, with a high near 13. Wind chill values as low as -15. Windy, with a northwest wind 26 to 31 mph, with gusts as high as 41 mph.

    High: 13 °F

    Blowing Snow
    and Windy

  • Monday Night

    Monday Night: Patchy blowing snow before 7pm. Mostly clear, with a low around 1. Blustery, with a northwest wind 15 to 20 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 28 mph.

    Low: 1 °F

    Patchy
    Blowing Snow
    and Blustery
    then Mostly
    Clear

  • Tuesday

    Tuesday: A 20 percent chance of snow after 1pm.  Partly sunny, with a high near 29.

    High: 29 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Tuesday Night

    Tuesday Night: Snow likely, mainly before 1am.  Mostly cloudy, with a low around 22. Chance of precipitation is 70%.

    Low: 22 °F

    Snow Likely

  • Wednesday

    Wednesday: Sunny, with a high near 47.

    High: 47 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of rain, then a chance of rain and thunderstorms after 4am. Mostly cloudy, with a temperature falling to near 39 by 10pm, then rising to around 43 during the remainder of the night. Breezy, with an east southeast wind 16 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Rain and sleet before 1pm, then rain, snow, and sleet between 1pm and 2pm, then snow after 2pm. Some thunder is also possible. Patchy blowing snow after 2pm. Temperature rising to near 46 by 8am, then falling to around 29 during the remainder of the day. Very windy, with a south southeast wind 16 to 26 mph becoming north 29 to 39 mph in the morning. Winds could gust as high as 50 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 1 to 2 inches possible.
Sunday Night
Snow, mainly before 1am. Widespread blowing snow. Low around 7. Wind chill values as low as -15. Very windy, with a northwest wind 37 to 40 mph, with gusts as high as 55 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Monday
Widespread blowing snow, mainly before 10am. Cloudy, then gradually becoming mostly sunny, with a high near 13. Wind chill values as low as -15. Windy, with a northwest wind 26 to 31 mph, with gusts as high as 41 mph.
Monday Night
Patchy blowing snow before 7pm. Mostly clear, with a low around 1. Blustery, with a northwest wind 15 to 20 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 28 mph.
Tuesday
A 20 percent chance of snow after 1pm. Partly sunny, with a high near 29.
Tuesday Night
Snow likely, mainly before 1am. Mostly cloudy, with a low around 22. Chance of precipitation is 70%.
Wednesday
Sunny, with a high near 47.
Wednesday Night
Partly cloudy, with a low around 32.
Thursday
Mostly sunny, with a high near 60.
Thursday Night
Mostly cloudy, with a low around 35.
Friday
Mostly sunny, with a high near 64.
Friday Night
Partly cloudy, with a low around 41.
Saturday
Mostly sunny, with a high near 66.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Grundy Center IA
 42.36°N 92.76°W
6:12 pm CDT Mar 14, 2026
8pm CDT Mar 14, 2026-6pm CDT Mar 21, 2026
 
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