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.

Overcast

39°F

4°C

Humidity 93%
Wind Speed E 5 mph
Barometer 30.00 in (1016.7 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 4 Mar 8:53 pm CST
Extended Forecast for

Grundy Center IA

  • Tonight

    Tonight: A chance of sprinkles between midnight and 2am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 38. Light and variable wind.

    Low: 38 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 54. Light and variable wind becoming east southeast 5 to 7 mph in the afternoon.

    High: 54 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: A chance of showers, then showers and possibly a thunderstorm after 3am. Patchy fog after 2am. Low around 43. Southeast wind 6 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 43 °F

    Mostly Cloudy
    then Showers
    and Patchy
    Fog

  • Friday

    Friday: Rain and possibly a thunderstorm. High near 68. Breezy, with a south wind 14 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 68 °F

    Rain then
    Rain Likely
    and Breezy

  • Friday Night

    Friday Night: Rain and possibly a thunderstorm before midnight, then a chance of rain. Low around 33. Breezy, with a south wind 14 to 18 mph becoming west northwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 33 °F

    Breezy. Rain
    then Chance
    Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 47. Breezy.

    High: 47 °F

    Partly Sunny
    and Breezy
    then Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 33.

    Low: 33 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 60. Breezy.

    High: 60 °F

    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of sprinkles between midnight and 2am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 38. Light and variable wind.
Thursday
Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 54. Light and variable wind becoming east southeast 5 to 7 mph in the afternoon.
Thursday Night
A chance of showers, then showers and possibly a thunderstorm after 3am. Patchy fog after 2am. Low around 43. Southeast wind 6 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Rain and possibly a thunderstorm. High near 68. Breezy, with a south wind 14 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Rain and possibly a thunderstorm before midnight, then a chance of rain. Low around 33. Breezy, with a south wind 14 to 18 mph becoming west northwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Mostly sunny, with a high near 47. Breezy.
Saturday Night
Clear, with a low around 33.
Sunday
Sunny, with a high near 60. Breezy.
Sunday Night
Mostly clear, with a low around 43.
Monday
Sunny, with a high near 68. Breezy.
Monday Night
Mostly clear, with a low around 43.
Tuesday
Rain likely. Partly sunny, with a high near 57. Breezy. Chance of precipitation is 60%.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 24. Blustery. Chance of precipitation is 50%.
Wednesday
Partly sunny, with a high near 35. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Grundy Center IA
 42.36°N 92.76°W
Last Update:
8:17 pm CST Mar 4, 2026
Forecast Valid:
9pm CST Mar 4, 2026-6pm CDT Mar 11, 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