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

88°F

31°C

Humidity 61%
Wind Speed S 5 mph
Barometer 29.96 in (1013.6 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 1 Sep 11:53 am CDT
Extended Forecast for

3 Miles NW Garwin IA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 91. South southwest wind around 7 mph.

    High: 91 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 72. Light and variable wind becoming south southwest 5 to 8 mph in the evening.

    Low: 72 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Sunny, with a high near 90. Southwest wind 6 to 10 mph.

    High: 90 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms after 4am. Mostly clear, with a low around 72. South southwest wind 5 to 7 mph.

    Low: 72 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms between 7am and 1pm. Mostly sunny, with a high near 91. South wind 5 to 9 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 91 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 91.

    High: 91 °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 93.

    High: 93 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 91. South southwest wind around 7 mph.
Tonight
Increasing clouds, with a low around 72. Light and variable wind becoming south southwest 5 to 8 mph in the evening.
Wednesday
Sunny, with a high near 90. Southwest wind 6 to 10 mph.
Wednesday Night
A 20 percent chance of showers and thunderstorms after 4am. Mostly clear, with a low around 72. South southwest wind 5 to 7 mph.
Thursday
A chance of showers and thunderstorms between 7am and 1pm. Mostly sunny, with a high near 91. South wind 5 to 9 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Mostly clear, with a low around 73.
Friday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 91.
Friday Night
Mostly clear, with a low around 72.
Saturday
Mostly sunny, with a high near 93.
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 89.
Sunday Night
Partly cloudy, with a low around 66.
Labor Day
Mostly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Garwin IA
 42.12°N 92.71°W
Last Update:
12:11 pm CDT Sep 1, 2026
Forecast Valid:
12pm 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