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.

Fair

38°F

3°C

Humidity 79%
Wind Speed N 14 mph
Barometer 29.82 in (1010.2 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 10 Feb 12:53 am CST
Extended Forecast for

Grundy Center IA

  • Overnight

    Overnight: Mostly cloudy, with a low around 32. Breezy, with a north northwest wind 11 to 16 mph, with gusts as high as 24 mph.

    Low: 32 °F

    Mostly Cloudy
    and Breezy

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 42. Breezy, with a north northwest wind 14 to 20 mph, with gusts as high as 28 mph.

    High: 42 °F

    Decreasing
    Clouds and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 25. Northwest wind 7 to 10 mph.

    Low: 25 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 44. North northwest wind 3 to 6 mph.

    High: 44 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 29. Calm wind becoming southeast around 6 mph after midnight.

    Low: 29 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Thursday

    Thursday: A chance of rain and snow. Mostly cloudy, with a high near 42. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 42 °F

    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A 20 percent chance of snow before midnight. Partly cloudy, with a low around 27.

    Low: 27 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 32. Breezy, with a north northwest wind 11 to 16 mph, with gusts as high as 24 mph.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 42. Breezy, with a north northwest wind 14 to 20 mph, with gusts as high as 28 mph.
Tuesday Night
Mostly clear, with a low around 25. Northwest wind 7 to 10 mph.
Wednesday
Sunny, with a high near 44. North northwest wind 3 to 6 mph.
Wednesday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 29. Calm wind becoming southeast around 6 mph after midnight.
Thursday
A chance of rain and snow. Mostly cloudy, with a high near 42. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A 20 percent chance of snow before midnight. Partly cloudy, with a low around 27.
Friday
Mostly sunny, with a high near 44.
Friday Night
Partly cloudy, with a low around 29.
Saturday
A 30 percent chance of rain after noon. Mostly cloudy, with a high near 44.
Saturday Night
A 30 percent chance of rain. Partly cloudy, with a low around 30.
Sunday
Mostly sunny, with a high near 45.
Sunday Night
Partly cloudy, with a low around 30.
Washington's Birthday
Mostly cloudy, with a high near 48.
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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:
10:26 pm CST Feb 9, 2026
Forecast Valid:
1am CST Feb 10, 2026-6pm CST Feb 16, 2026
 
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