National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Hazardous Weather Conditions

Current conditions at

Marshalltown, Marshalltown Municipal Airport (KMIW)

Lat: 42.11°NLon: 92.92°WElev: 971ft.

Fair

76°F

24°C

Humidity 62%
Wind Speed Calm
Barometer 30.17 in (1021.0 mb)
Dewpoint 62°F (17°C)
Visibility 9.00 mi
Heat Index78°F (26°C)
Last update 28 Aug 10:53 am CDT
Extended Forecast for

Zearing IA

  • Today

    Today: Sunny, with a high near 83. South southwest wind 3 to 6 mph.

    High: 83 °F

    Sunny

  • Tonight

    Tonight: A 10 percent chance of showers after 5am. Mostly cloudy, with a low around 66. South wind 6 to 9 mph.

    Low: 66 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: Showers and thunderstorms likely, mainly before noon. Cloudy through mid morning, then gradual clearing, with a high near 86. Breezy, with a south wind 10 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Breezy.
    Showers
    Likely then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 72. South wind 10 to 14 mph, with gusts as high as 23 mph.

    Low: 72 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 91. South wind 11 to 13 mph, with gusts as high as 20 mph.

    High: 91 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 74.

    Low: 74 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: Mostly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 72.

    Low: 72 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Tuesday

    Tuesday: Partly sunny, with a high near 91.

    High: 91 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 83. South southwest wind 3 to 6 mph.
Tonight
A 10 percent chance of showers after 5am. Mostly cloudy, with a low around 66. South wind 6 to 9 mph.
Saturday
Showers and thunderstorms likely, mainly before noon. Cloudy through mid morning, then gradual clearing, with a high near 86. Breezy, with a south wind 10 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Partly cloudy, with a low around 72. South wind 10 to 14 mph, with gusts as high as 23 mph.
Sunday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 91. South wind 11 to 13 mph, with gusts as high as 20 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 74.
Monday
Mostly sunny, with a high near 92.
Monday Night
A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 72.
Tuesday
Partly sunny, with a high near 91.
Tuesday Night
A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 72.
Wednesday
Mostly sunny, with a high near 92.
Wednesday Night
Mostly clear, with a low around 72.
Thursday
Mostly sunny, with a high near 92.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Zearing IA
 42.17°N 93.3°W
Last Update:
11:36 am CDT Aug 28, 2026
Forecast Valid:
11am CDT Aug 28, 2026-6pm CDT Sep 3, 2026
 
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