National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Marshalltown, Marshalltown Municipal Airport (KMIW)

Lat: 42.11°NLon: 92.92°WElev: 971ft.

Fair

33°F

1°C

Humidity 82%
Wind Speed S 12 mph
Barometer 29.78 in (1009.7 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 4 Jan 7:53 pm CST
Extended Forecast for

Grundy Center IA

  • Tonight

    Tonight: Areas of fog after 5am. Otherwise, increasing clouds, with a steady temperature around 33. South southwest wind 5 to 14 mph becoming west northwest after midnight. Winds could gust as high as 23 mph.

    Low: 33 °F

    Clear then
    Areas Fog

  • Monday

    Monday: Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 42. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 42 °F

    Areas Fog
    then Mostly
    Cloudy

  • Monday Night

    Monday Night: Patchy fog after 7pm. Otherwise, mostly cloudy, with a low around 32. Southeast wind around 6 mph becoming light and variable.

    Low: 32 °F

    Patchy Fog

  • Tuesday

    Tuesday: Partly sunny, with a high near 43. Northwest wind 6 to 9 mph.

    High: 43 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 29. West northwest wind around 6 mph becoming light and variable.

    Low: 29 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

Tonight
Areas of fog after 5am. Otherwise, increasing clouds, with a steady temperature around 33. South southwest wind 5 to 14 mph becoming west northwest after midnight. Winds could gust as high as 23 mph.
Monday
Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 42. Calm wind becoming southeast around 6 mph in the afternoon.
Monday Night
Patchy fog after 7pm. Otherwise, mostly cloudy, with a low around 32. Southeast wind around 6 mph becoming light and variable.
Tuesday
Partly sunny, with a high near 43. Northwest wind 6 to 9 mph.
Tuesday Night
Partly cloudy, with a low around 29. West northwest wind around 6 mph becoming light and variable.
Wednesday
Sunny, with a high near 50.
Wednesday Night
Mostly clear, with a low around 32.
Thursday
Partly sunny, with a high near 44.
Thursday Night
A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 32.
Friday
A chance of rain before noon, then a chance of rain and snow. Mostly cloudy, with a high near 41. Chance of precipitation is 40%.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 25. Chance of precipitation is 30%.
Saturday
A 30 percent chance of snow. Partly sunny, with a high near 31. Blustery.
Saturday Night
Mostly cloudy, with a low around 16. Blustery.
Sunday
Mostly sunny, with a high near 31.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grundy Center IA
 42.36°N 92.76°W
Last Update:
7:31 pm CST Jan 4, 2026
Forecast Valid:
8pm CST Jan 4, 2026-6pm CST Jan 11, 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