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National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
7-Day Forecast 42.04°N 92.92°W (Text-Only)
NWS Forecast for: Marshalltown IA
Issued by: National Weather Service Des Moines, IA
Last Update: 7:47 am CDT Jun 30, 2026		Print

  • Today

    Today: Mostly sunny, with a high near 95. Heat index values as high as 103. Breezy, with a south southwest wind 9 to 18 mph, with gusts as high as 25 mph.

    High: 95 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 10pm. Partly cloudy, with a low around 74. South southwest wind 10 to 13 mph, with gusts as high as 20 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 74 °F

    Chance
    T-storms


  • Wednesday

    Wednesday: Mostly sunny, with a high near 94. Heat index values as high as 100. Breezy, with a south southwest wind 10 to 16 mph, with gusts as high as 26 mph.

    High: 94 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Wednesday
    Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 74 °F

    Chance
    T-storms


  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92. Southwest wind around 9 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 92 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday
    Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 72. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 72 °F

    Chance
    T-storms then
    Showers
    Likely

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 93.

    High: 93 °F

    Chance
    T-storms


  • Friday
    Night

    Friday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.

    Low: 71 °F

    Chance
    T-storms


  • Independence
    Day

    Independence Day: A 40 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 91.

    High: 91 °F

    Chance
    T-storms




    • Today: Mostly sunny, with a high near 95. Heat index values as high as 103. Breezy, with a south southwest wind 9 to 18 mph, with gusts as high as 25 mph.

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 10pm. Partly cloudy, with a low around 74. South southwest wind 10 to 13 mph, with gusts as high as 20 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Wednesday: Mostly sunny, with a high near 94. Heat index values as high as 100. Breezy, with a south southwest wind 10 to 16 mph, with gusts as high as 26 mph.

    Wednesday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Thursday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92. Southwest wind around 9 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 72. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Friday: A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 93.

    Friday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.

    Independence Day: A 40 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 91.

    Saturday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.

    Sunday: Mostly sunny, with a high near 89.

    Sunday Night: A 30 percent chance of showers. Partly cloudy, with a low around 66.

    Monday: Mostly sunny, with a high near 88.


    Marshalltown IA
     42.04°N 92.92°W

    Visit your local NWS office at: https://www.weather.gov/desmoines