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.

Partly Cloudy

30°F

-1°C

Humidity 69%
Wind Speed N 18 mph
Barometer 30.20 in (1023.7 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 28 Feb 1:53 pm CST
Extended Forecast for

Grundy Center IA

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 31. North northeast wind 11 to 13 mph.

    High: 31 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 14. Wind chill values as low as 5. North wind 8 to 10 mph.

    Low: 14 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 29. Wind chill values as low as 5. East northeast wind 6 to 8 mph.

    High: 29 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 21. Southeast wind 6 to 8 mph.

    Low: 21 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 39. South southeast wind 8 to 11 mph.

    High: 39 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Rain likely, mainly after midnight. Cloudy, with a low around 32. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 32 °F

    Chance Rain
    then Rain
    Likely

  • Tuesday

    Tuesday: A 40 percent chance of rain, mainly before noon. Mostly cloudy, with a high near 44.

    High: 44 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 47.

    High: 47 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 31. North northeast wind 11 to 13 mph.
Tonight
Mostly cloudy, with a low around 14. Wind chill values as low as 5. North wind 8 to 10 mph.
Sunday
Partly sunny, with a high near 29. Wind chill values as low as 5. East northeast wind 6 to 8 mph.
Sunday Night
Mostly cloudy, with a low around 21. Southeast wind 6 to 8 mph.
Monday
Mostly cloudy, with a high near 39. South southeast wind 8 to 11 mph.
Monday Night
Rain likely, mainly after midnight. Cloudy, with a low around 32. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
A 40 percent chance of rain, mainly before noon. Mostly cloudy, with a high near 44.
Tuesday Night
Partly cloudy, with a low around 31.
Wednesday
Mostly sunny, with a high near 47.
Wednesday Night
Mostly cloudy, with a low around 33.
Thursday
A 30 percent chance of rain. Mostly cloudy, with a high near 55.
Thursday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 35.
Friday
Rain likely. Mostly cloudy, with a high near 54. Chance of precipitation is 60%.
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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:
2:01 pm CST Feb 28, 2026
Forecast Valid:
2pm CST Feb 28, 2026-6pm CST Mar 6, 2026
 
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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