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

35°F

2°C

Humidity 85%
Wind Speed NW 15 mph
Barometer 29.76 in (1008.3 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 13 Jan 9:53 pm CST
Extended Forecast for

Grundy Center IA

  • Tonight

    Tonight: Mostly cloudy, with a low around 19. Wind chill values as low as 10. Windy, with a light north wind becoming north northwest 21 to 26 mph after midnight. Winds could gust as high as 37 mph.

    Low: 19 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Windy

  • Wednesday

    Wednesday: Mostly cloudy through mid morning, then gradual clearing, with a high near 25. Wind chill values as low as 5. Windy, with a north northwest wind 16 to 26 mph, with gusts as high as 38 mph.

    High: 25 °F

    Becoming
    Sunny and
    Windy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 11. North northwest wind 9 to 14 mph becoming light northwest after midnight. Winds could gust as high as 20 mph.

    Low: 11 °F

    Mostly Clear

  • Thursday

    Thursday: A 20 percent chance of snow after noon. Partly sunny, with a high near 31. Wind chill values as low as 5. Light and variable wind becoming south southwest 10 to 15 mph in the morning. Winds could gust as high as 21 mph.

    High: 31 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Thursday Night

    Thursday Night: A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 29. Blustery, with a south southwest wind 14 to 20 mph becoming west northwest in the evening. Winds could gust as high as 26 mph. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Chance Snow
    and Blustery

  • Friday

    Friday: A 20 percent chance of snow. Mostly cloudy, with a high near 33. Windy.

    High: 33 °F

    Slight Chance
    Snow and
    Windy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 7. Windy.

    Low: 7 °F

    Mostly Cloudy
    and Windy

  • Saturday

    Saturday: Partly sunny, with a high near 12. Blustery.

    High: 12 °F

    Partly Sunny
    and Blustery

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 2. Blustery.

    Low: 2 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 19. Wind chill values as low as 10. Windy, with a light north wind becoming north northwest 21 to 26 mph after midnight. Winds could gust as high as 37 mph.
Wednesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 25. Wind chill values as low as 5. Windy, with a north northwest wind 16 to 26 mph, with gusts as high as 38 mph.
Wednesday Night
Mostly clear, with a low around 11. North northwest wind 9 to 14 mph becoming light northwest after midnight. Winds could gust as high as 20 mph.
Thursday
A 20 percent chance of snow after noon. Partly sunny, with a high near 31. Wind chill values as low as 5. Light and variable wind becoming south southwest 10 to 15 mph in the morning. Winds could gust as high as 21 mph.
Thursday Night
A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 29. Blustery, with a south southwest wind 14 to 20 mph becoming west northwest in the evening. Winds could gust as high as 26 mph. New snow accumulation of less than a half inch possible.
Friday
A 20 percent chance of snow. Mostly cloudy, with a high near 33. Windy.
Friday Night
Mostly cloudy, with a low around 7. Windy.
Saturday
Partly sunny, with a high near 12. Blustery.
Saturday Night
Mostly cloudy, with a low around 2. Blustery.
Sunday
Mostly sunny, with a high near 22. Breezy.
Sunday Night
Partly cloudy, with a low around 6. Blustery.
M.L.King Day
Mostly sunny, with a high near 18. Blustery.
Monday Night
Partly cloudy, with a low around 2.
Tuesday
Mostly sunny, with a high near 19.
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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:
10:41 pm CST Jan 13, 2026
Forecast Valid:
10pm CST Jan 13, 2026-6pm CST Jan 20, 2026
 
Forecast Discussion
 
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Additional Resources

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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