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.

A Few Clouds

70°F

21°C

Humidity 90%
Wind Speed SE 12 mph
Barometer 30.06 in (1017.2 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 16 Aug 3:53 am CDT
Extended Forecast for

Melbourne IA

Heat Advisory August 16, 12:00pm until August 16, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 92. Heat index values as high as 104. South southwest wind 7 to 10 mph.

    High: 92 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 72. South wind around 7 mph.

    Low: 72 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 92. Heat index values as high as 104. East wind 6 to 9 mph becoming south in the afternoon.

    High: 92 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72. South wind around 7 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 72 °F

    Partly Cloudy
    then Chance
    T-storms

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 91. South southwest wind 7 to 10 mph.

    High: 91 °F

    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.

    High: 84 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 92. Heat index values as high as 104. South southwest wind 7 to 10 mph.
Tonight
Mostly clear, with a low around 72. South wind around 7 mph.
Sunday
Mostly sunny, with a high near 92. Heat index values as high as 104. East wind 6 to 9 mph becoming south in the afternoon.
Sunday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72. South wind around 7 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 91. South southwest wind 7 to 10 mph.
Monday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
Tuesday Night
Partly cloudy, with a low around 63.
Wednesday
Mostly sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 59.
Thursday
Sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 60.
Friday
Sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Melbourne IA
 41.95°N 93.1°W
Last Update:
3:22 am CDT Aug 16, 2025
Forecast Valid:
4am CDT Aug 16, 2025-6pm CDT Aug 22, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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