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.

Fair

79°F

26°C

Humidity 94%
Wind Speed NA
Barometer 29.96 in (1013.7 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 1 Sep 9:53 am CDT
Extended Forecast for

3 Miles ENE Marshalltown IA

  • Today

    Today: Mostly sunny, with a high near 92. Heat index values as high as 101. South southwest wind 3 to 8 mph.

    High: 92 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 73. Light and variable wind becoming south around 6 mph in the evening.

    Low: 73 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 91. South southeast wind 5 to 9 mph becoming west southwest in the afternoon.

    High: 91 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 72. Calm wind becoming south around 5 mph after midnight.

    Low: 72 °F

    Mostly Clear

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 92. Light south wind increasing to 5 to 9 mph in the morning.

    High: 92 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 92.

    High: 92 °F

    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 72.

    Low: 72 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 95.

    High: 95 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 92. Heat index values as high as 101. South southwest wind 3 to 8 mph.
Tonight
Mostly clear, with a low around 73. Light and variable wind becoming south around 6 mph in the evening.
Wednesday
Sunny, with a high near 91. South southeast wind 5 to 9 mph becoming west southwest in the afternoon.
Wednesday Night
Mostly clear, with a low around 72. Calm wind becoming south around 5 mph after midnight.
Thursday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 92. Light south wind increasing to 5 to 9 mph in the morning.
Thursday Night
Mostly clear, with a low around 74.
Friday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 92.
Friday Night
Mostly clear, with a low around 72.
Saturday
Mostly sunny, with a high near 95.
Saturday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70.
Sunday
A 30 percent chance of showers. Mostly sunny, with a high near 90.
Sunday Night
Partly cloudy, with a low around 66.
Labor Day
Mostly sunny, with a high near 88.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Marshalltown IA
 42.06°N 92.86°W
Last Update:
9:19 am CDT Sep 1, 2026
Forecast Valid:
10am CDT Sep 1, 2026-6pm CDT Sep 7, 2026
 
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Additional Resources

Radar & Satellite Image

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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