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.

Partly Cloudy

67°F

19°C

Humidity 20%
Wind Speed NW 17 G 25 mph
Barometer 30.06 in (1018.1 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Last update 10 May 6:53 pm CDT
Extended Forecast for

Grundy Center IA

  • Tonight

    Tonight: Areas of frost after 5am. Otherwise, clear, with a low around 36. North northwest wind 8 to 13 mph becoming light and variable after midnight. Winds could gust as high as 22 mph.

    Low: 36 °F

    Mostly Clear
    then Areas
    Frost

  • Monday

    Monday: Areas of frost before 8am. Otherwise, sunny, with a high near 69. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 69 °F

    Areas Frost
    then Sunny

  • Monday Night

    Monday Night: A 10 percent chance of showers after 5am. Clear, then becoming mostly cloudy toward daybreak, with a low around 52. Breezy, with a south southeast wind 8 to 18 mph, with gusts as high as 26 mph.

    Low: 52 °F

    Partly Cloudy
    then Slight
    Chance
    Showers and
    Breezy

  • Tuesday

    Tuesday: A 30 percent chance of showers, mainly before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 80. Windy, with a south southwest wind 20 to 24 mph becoming west northwest in the afternoon. Winds could gust as high as 31 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 80 °F

    Chance
    Showers and
    Windy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 49. Breezy, with a northwest wind 11 to 17 mph, with gusts as high as 24 mph.

    Low: 49 °F

    Mostly Clear
    and Breezy
    then Clear

  • Wednesday

    Wednesday: Sunny, with a high near 71. Breezy.

    High: 71 °F

    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 74. Windy.

    High: 74 °F

    Sunny then
    Sunny and
    Windy

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 56. Windy.

    Low: 56 °F

    Partly Cloudy
    and Breezy
    then Chance
    T-storms and
    Windy

Detailed Forecast

Tonight
Areas of frost after 5am. Otherwise, clear, with a low around 36. North northwest wind 8 to 13 mph becoming light and variable after midnight. Winds could gust as high as 22 mph.
Monday
Areas of frost before 8am. Otherwise, sunny, with a high near 69. Calm wind becoming south southeast around 5 mph in the afternoon.
Monday Night
A 10 percent chance of showers after 5am. Clear, then becoming mostly cloudy toward daybreak, with a low around 52. Breezy, with a south southeast wind 8 to 18 mph, with gusts as high as 26 mph.
Tuesday
A 30 percent chance of showers, mainly before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 80. Windy, with a south southwest wind 20 to 24 mph becoming west northwest in the afternoon. Winds could gust as high as 31 mph. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Mostly clear, with a low around 49. Breezy, with a northwest wind 11 to 17 mph, with gusts as high as 24 mph.
Wednesday
Sunny, with a high near 71. Breezy.
Wednesday Night
Mostly clear, with a low around 44.
Thursday
Sunny, with a high near 74. Windy.
Thursday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 56. Windy.
Friday
Mostly sunny, with a high near 83. Breezy.
Friday Night
Partly cloudy, with a low around 55.
Saturday
Mostly sunny, with a high near 82.
Saturday Night
Partly cloudy, with a low around 55.
Sunday
Mostly sunny, with a high near 81. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Grundy Center IA
 42.36°N 92.76°W
Last Update:
5:07 pm CDT May 10, 2026
Forecast Valid:
7pm CDT May 10, 2026-6pm CDT May 17, 2026
 
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