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.

Mostly Cloudy

60°F

16°C

Humidity 86%
Wind Speed S 12 mph
Barometer 29.83 in (1010.2 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 12 Apr 3:53 am CDT
Extended Forecast for

Marshalltown IA

  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 59. South wind around 15 mph, with gusts as high as 21 mph.

    Low: 59 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 71. Windy, with a south southwest wind 17 to 24 mph, with gusts as high as 36 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 71 °F

    Windy. Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 10 percent chance of showers and thunderstorms before 7pm. Cloudy, then gradually becoming partly cloudy, with a low around 59. Breezy, with a south southwest wind 9 to 18 mph, with gusts as high as 26 mph.

    Low: 59 °F

    Slight Chance
    T-storms and
    Breezy then
    Mostly Cloudy

  • Monday

    Monday: A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 78. Breezy, with a south wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 20%.

    High: 78 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms and
    Breezy

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 62. South southwest wind 7 to 15 mph, with gusts as high as 24 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 81. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.

    Low: 57 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 7am. Partly sunny, with a high near 74. Chance of precipitation is 50%.

    High: 74 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 51.

    Low: 51 °F

    Chance
    T-storms

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 59. South wind around 15 mph, with gusts as high as 21 mph.
Sunday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 71. Windy, with a south southwest wind 17 to 24 mph, with gusts as high as 36 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A 10 percent chance of showers and thunderstorms before 7pm. Cloudy, then gradually becoming partly cloudy, with a low around 59. Breezy, with a south southwest wind 9 to 18 mph, with gusts as high as 26 mph.
Monday
A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 78. Breezy, with a south wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 20%.
Monday Night
A 40 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 62. South southwest wind 7 to 15 mph, with gusts as high as 24 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 81. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.
Wednesday
A chance of showers, with thunderstorms also possible after 7am. Partly sunny, with a high near 74. Chance of precipitation is 50%.
Wednesday Night
A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 51.
Thursday
Sunny, with a high near 78.
Thursday Night
Mostly clear, with a low around 57.
Friday
Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 75. Breezy. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 41. Breezy. Chance of precipitation is 60%.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
Marshalltown IA
 42.06°N 92.92°W
Last Update:
3:43 am CDT Apr 12, 2026
Forecast Valid:
4am CDT Apr 12, 2026-6pm CDT Apr 18, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

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Chance of Precipitation