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

5°F

-15°C

Humidity 76%
Wind Speed NE 9 mph
Barometer 30.32 in (1028.8 mb)
Dewpoint -1°F (-18°C)
Visibility 10.00 mi
Wind Chill-9°F (-23°C)
Last update 29 Jan 5:53 am CST
Extended Forecast for

Grundy Center IA

  • Today

    Today: Mostly cloudy through mid morning, then gradual clearing, with a high near 14. Wind chill values as low as -10. Calm wind becoming north around 6 mph in the morning.

    High: 14 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around -3. Wind chill values as low as -15. North wind 5 to 7 mph.

    Low: -3 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 11. Wind chill values as low as -20. North wind 8 to 15 mph, with gusts as high as 21 mph.

    High: 11 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around -2. Wind chill values as low as -15. North wind 8 to 13 mph, with gusts as high as 18 mph.

    Low: -2 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 17. North northwest wind 5 to 8 mph becoming west southwest in the afternoon.

    High: 17 °F

    Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of snow after midnight. Partly cloudy, with a low around 7.

    Low: 7 °F

    Partly Cloudy
    then Slight
    Chance Snow

  • Sunday

    Sunday: Snow likely, mainly before noon. Partly sunny, with a high near 26. Chance of precipitation is 60%.

    High: 26 °F

    Snow Likely

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 15.

    Low: 15 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 27.

    High: 27 °F

    Partly Sunny

Detailed Forecast

Today
Mostly cloudy through mid morning, then gradual clearing, with a high near 14. Wind chill values as low as -10. Calm wind becoming north around 6 mph in the morning.
Tonight
Mostly clear, with a low around -3. Wind chill values as low as -15. North wind 5 to 7 mph.
Friday
Mostly sunny, with a high near 11. Wind chill values as low as -20. North wind 8 to 15 mph, with gusts as high as 21 mph.
Friday Night
Mostly clear, with a low around -2. Wind chill values as low as -15. North wind 8 to 13 mph, with gusts as high as 18 mph.
Saturday
Sunny, with a high near 17. North northwest wind 5 to 8 mph becoming west southwest in the afternoon.
Saturday Night
A 20 percent chance of snow after midnight. Partly cloudy, with a low around 7.
Sunday
Snow likely, mainly before noon. Partly sunny, with a high near 26. Chance of precipitation is 60%.
Sunday Night
Mostly cloudy, with a low around 15.
Monday
Partly sunny, with a high near 27.
Monday Night
Mostly cloudy, with a low around 13.
Tuesday
Mostly cloudy, with a high near 26.
Tuesday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 14.
Wednesday
Partly sunny, with a high near 26.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grundy Center IA
 42.36°N 92.76°W
Last Update:
6:27 am CST Jan 29, 2026
Forecast Valid:
6am CST Jan 29, 2026-6pm CST Feb 4, 2026
 
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Additional Resources

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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