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

27°F

-3°C

Humidity 66%
Wind Speed SW 7 mph
Barometer 30.19 in (1023.6 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 11 Jan 11:53 pm CST
Extended Forecast for

Grundy Center IA

  • Overnight

    Overnight: Mostly cloudy, with a low around 26. West southwest wind 7 to 11 mph, with gusts as high as 21 mph.

    Low: 26 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy through mid morning, then gradual clearing, with a high near 43. West wind 6 to 8 mph.

    High: 43 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 33. West southwest wind 8 to 15 mph, with gusts as high as 21 mph.

    Low: 33 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 47. Breezy, with a west wind 16 to 20 mph, with gusts as high as 28 mph.

    High: 47 °F

    Mostly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 24. Windy, with a northwest wind 17 to 22 mph increasing to 23 to 28 mph after midnight. Winds could gust as high as 34 mph.

    Low: 24 °F

    Mostly Cloudy
    and Windy

  • Wednesday

    Wednesday: Partly sunny, with a high near 28. Windy.

    High: 28 °F

    Partly Sunny
    and Windy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 13. Blustery.

    Low: 13 °F

    Mostly Clear
    and Blustery
    then Mostly
    Clear

  • Thursday

    Thursday: A 20 percent chance of snow after noon. Partly sunny, with a high near 29.

    High: 29 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Thursday Night

    Thursday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 24.

    Low: 24 °F

    Chance Snow

Detailed Forecast

Overnight
Mostly cloudy, with a low around 26. West southwest wind 7 to 11 mph, with gusts as high as 21 mph.
Monday
Mostly cloudy through mid morning, then gradual clearing, with a high near 43. West wind 6 to 8 mph.
Monday Night
Increasing clouds, with a low around 33. West southwest wind 8 to 15 mph, with gusts as high as 21 mph.
Tuesday
Mostly sunny, with a high near 47. Breezy, with a west wind 16 to 20 mph, with gusts as high as 28 mph.
Tuesday Night
Mostly cloudy, with a low around 24. Windy, with a northwest wind 17 to 22 mph increasing to 23 to 28 mph after midnight. Winds could gust as high as 34 mph.
Wednesday
Partly sunny, with a high near 28. Windy.
Wednesday Night
Mostly clear, with a low around 13. Blustery.
Thursday
A 20 percent chance of snow after noon. Partly sunny, with a high near 29.
Thursday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 24.
Friday
A 50 percent chance of snow. Mostly cloudy, with a high near 33. Breezy.
Friday Night
Mostly cloudy, with a low around 11. Blustery.
Saturday
Partly sunny, with a high near 18. Blustery.
Saturday Night
Partly cloudy, with a low around 7.
Sunday
Partly sunny, with a high near 24. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grundy Center IA
 42.36°N 92.79°W
Last Update:
10:51 pm CST Jan 11, 2026
Forecast Valid:
12am CST Jan 12, 2026-6pm CST Jan 18, 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