Severe Weather and Heavy Rain from the Ohio Valley to the Mid-Atlantic; Heat Persists in the South-Central U.S.

Widespread strong thunderstorms with damaging winds and locally heavy rain are expected across portions of the Ohio Valley into southern Mid-Atlantic and Carolinas. Rounds of strong thunderstorms are expected to develop across the northern and central Plains. Sweltering heat remains most persistent across the South-Central Plains and Lower/Middle Mississippi Valley through next week. Read More >

Hazardous Weather Conditions

Current conditions at

Marshalltown, Marshalltown Municipal Airport (KMIW)

Lat: 42.11°NLon: 92.92°WElev: 971ft.

Fog/Mist

70°F

21°C

Humidity 97%
Wind Speed SE 8 mph
Barometer 30.09 in (1018.5 mb)
Dewpoint 69°F (21°C)
Visibility 4.00 mi
Last update 6 Sep 9:53 am CDT
Extended Forecast for

Marshalltown IA

  • Today

    Today: Mostly cloudy, with a high near 85. East southeast wind 6 to 10 mph.

    High: 85 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 64. East southeast wind around 8 mph.

    Low: 64 °F

    Mostly Cloudy

  • Labor Day

    Labor Day: Partly sunny, with a high near 86. Southeast wind 8 to 11 mph, with gusts as high as 18 mph.

    High: 86 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 66. Southeast wind around 11 mph.

    Low: 66 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers, with thunderstorms also possible after 4pm.  Mostly sunny, with a high near 94. South southeast wind around 10 mph, with gusts as high as 18 mph.  Chance of precipitation is 20%.

    High: 94 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm.  Low around 69. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 69 °F

    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 85. East southeast wind 6 to 10 mph.
Tonight
Mostly cloudy, with a low around 64. East southeast wind around 8 mph.
Labor Day
Partly sunny, with a high near 86. Southeast wind 8 to 11 mph, with gusts as high as 18 mph.
Monday Night
Partly cloudy, with a low around 66. Southeast wind around 11 mph.
Tuesday
A slight chance of showers, with thunderstorms also possible after 4pm. Mostly sunny, with a high near 94. South southeast wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 69. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Mostly sunny, with a high near 84.
Wednesday Night
Partly cloudy, with a low around 59.
Thursday
Sunny, with a high near 83.
Thursday Night
Mostly clear, with a low around 59.
Friday
Sunny, with a high near 84.
Friday Night
Mostly clear, with a low around 62.
Saturday
A 30 percent chance of showers. Mostly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
Marshalltown IA
 42.04°N 92.92°W
10:22 am CDT Sep 6, 2026
10am CDT Sep 6, 2026-6pm CDT Sep 12, 2026
 
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Additional Resources

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Hourly Weather Forecast

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