Current conditions at

Marshalltown, Marshalltown Municipal Airport (KMIW)

Lat: 42.11°NLon: 92.92°WElev: 971ft.

Mostly Cloudy

6°F

-14°C

Humidity 69%
Wind Speed W 7 mph
Barometer 30.30 in (1028.5 mb)
Dewpoint -2°F (-19°C)
Visibility 10.00 mi
Wind Chill-6°F (-21°C)
Last update 19 Jan 6:53 pm CST
Extended Forecast for

Grundy Center IA

  • Tonight

    Tonight: Cloudy during the early evening, then gradual clearing, with a low around -1. Wind chill values as low as -10. West wind 3 to 7 mph.

    Low: -1 °F

    Gradual
    Clearing

  • Tuesday

    Tuesday: Increasing clouds, with a high near 20. Wind chill values as low as -10. Light and variable wind becoming south 5 to 8 mph in the morning.

    High: 20 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A 50 percent chance of snow.  Mostly cloudy, with a low around 13. Wind chill values as low as zero. Southeast wind 5 to 10 mph becoming west northwest after midnight.  New snow accumulation of less than a half inch possible.

    Low: 13 °F

    Chance Snow

  • Wednesday

    Wednesday: A 20 percent chance of snow after noon.  Mostly sunny, with a high near 30. Wind chill values as low as zero. Breezy, with a west southwest wind 10 to 17 mph, with gusts as high as 24 mph.

    High: 30 °F

    Mostly Sunny
    then Slight
    Chance Snow
    and Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 6. Blustery, with a west northwest wind 9 to 17 mph, with gusts as high as 24 mph.

    Low: 6 °F

    Partly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 18.

    High: 18 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -13.

    Low: -13 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny and cold, with a high near -6.

    High: -6 °F

    Cold

  • Friday Night

    Friday Night: Mostly cloudy, with a low around -17.

    Low: -17 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Cloudy during the early evening, then gradual clearing, with a low around -1. Wind chill values as low as -10. West wind 3 to 7 mph.
Tuesday
Increasing clouds, with a high near 20. Wind chill values as low as -10. Light and variable wind becoming south 5 to 8 mph in the morning.
Tuesday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 13. Wind chill values as low as zero. Southeast wind 5 to 10 mph becoming west northwest after midnight. New snow accumulation of less than a half inch possible.
Wednesday
A 20 percent chance of snow after noon. Mostly sunny, with a high near 30. Wind chill values as low as zero. Breezy, with a west southwest wind 10 to 17 mph, with gusts as high as 24 mph.
Wednesday Night
Partly cloudy, with a low around 6. Blustery, with a west northwest wind 9 to 17 mph, with gusts as high as 24 mph.
Thursday
Mostly sunny, with a high near 18.
Thursday Night
Partly cloudy, with a low around -13.
Friday
Mostly sunny and cold, with a high near -6.
Friday Night
Mostly cloudy, with a low around -17.
Saturday
Mostly sunny and cold, with a high near -2.
Saturday Night
Partly cloudy, with a low around -11.
Sunday
Mostly sunny and cold, with a high near 10.
Sunday Night
Partly cloudy, with a low around 0.
Monday
Mostly sunny, with a high near 17.
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ABOUT THIS FORECAST

 
Point Forecast:
Grundy Center IA
 42.36°N 92.76°W
5:56 pm CST Jan 19, 2026
7pm CST Jan 19, 2026-6pm CST Jan 26, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database