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

Marshalltown, Marshalltown Municipal Airport (KMIW)

Lat: 42.11°NLon: 92.92°WElev: 971ft.

Fog/Mist and Breezy

34°F

1°C

Humidity 97%
Wind Speed W 23 G 30 mph
Barometer 29.78 in (1008.8 mb)
Dewpoint 33°F (1°C)
Visibility 4.00 mi
Wind Chill22°F (-6°C)
Last update 7 Mar 4:53 am CST
Extended Forecast for

Grundy Center IA

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 45. Breezy, with a northwest wind 11 to 20 mph, with gusts as high as 29 mph.

    High: 45 °F

    Decreasing
    Clouds and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 34. Breezy, with a southwest wind 9 to 18 mph, with gusts as high as 25 mph.

    Low: 34 °F

    Mostly Clear
    then Mostly
    Clear and
    Breezy

  • Sunday

    Sunday: Sunny, with a high near 60. Breezy, with a southwest wind 15 to 18 mph, with gusts as high as 25 mph.

    High: 60 °F

    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Clear, with a low around 44. Breezy, with a southwest wind 14 to 18 mph, with gusts as high as 25 mph.

    Low: 44 °F

    Clear and
    Breezy

  • Monday

    Monday: Sunny, with a high near 65. Southwest wind 8 to 13 mph becoming north in the afternoon. Winds could gust as high as 18 mph.

    High: 65 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 39.

    Low: 39 °F

    Clear

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 59.

    High: 59 °F

    Sunny then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of rain showers before midnight, then a chance of rain and snow showers. Some thunder is also possible. Mostly cloudy, with a low around 33. Breezy. Chance of precipitation is 40%.

    Low: 33 °F

    Breezy.
    Chance
    Showers then
    Chance
    Rain/Snow

  • Wednesday

    Wednesday: Partly sunny, with a high near 46. Breezy.

    High: 46 °F

    Partly Sunny
    and Breezy

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 45. Breezy, with a northwest wind 11 to 20 mph, with gusts as high as 29 mph.
Tonight
Mostly clear, with a low around 34. Breezy, with a southwest wind 9 to 18 mph, with gusts as high as 25 mph.
Sunday
Sunny, with a high near 60. Breezy, with a southwest wind 15 to 18 mph, with gusts as high as 25 mph.
Sunday Night
Clear, with a low around 44. Breezy, with a southwest wind 14 to 18 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 65. Southwest wind 8 to 13 mph becoming north in the afternoon. Winds could gust as high as 18 mph.
Monday Night
Clear, with a low around 39.
Tuesday
A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 59.
Tuesday Night
A chance of rain showers before midnight, then a chance of rain and snow showers. Some thunder is also possible. Mostly cloudy, with a low around 33. Breezy. Chance of precipitation is 40%.
Wednesday
Partly sunny, with a high near 46. Breezy.
Wednesday Night
Mostly clear, with a low around 26.
Thursday
Partly sunny, with a high near 50. Breezy.
Thursday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 37. Breezy. Chance of precipitation is 30%.
Friday
Mostly cloudy, with a high near 54. Windy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grundy Center IA
 42.36°N 92.76°W
Last Update:
5:16 am CST Mar 7, 2026
Forecast Valid:
5am CST Mar 7, 2026-6pm CDT Mar 13, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation