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 >

Current conditions at

Des Moines International Airport (KDSM)

Lat: 41.53°NLon: 93.65°WElev: 942ft.

Fair

66°F

19°C

Humidity 87%
Wind Speed Calm
Barometer 30.11 in (1018.9 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 28 Aug 12:54 am CDT
Extended Forecast for

Winterset IA

  • Overnight

    Overnight: Clear, with a steady temperature around 63. Calm wind.

    Low: 63 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 85. Calm wind becoming south southwest around 5 mph in the morning.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 69. South wind 5 to 11 mph, with gusts as high as 21 mph.

    Low: 69 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A chance of showers and thunderstorms before noon, then a slight chance of showers between noon and 1pm. Partly sunny, with a high near 89. Breezy, with a south wind 11 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Chance
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 76. Breezy, with a south wind 14 to 16 mph, with gusts as high as 24 mph.

    Low: 76 °F

    Mostly Clear
    then Partly
    Cloudy and
    Breezy

  • Sunday

    Sunday: Mostly sunny, with a high near 95. Breezy.

    High: 95 °F

    Mostly Sunny
    and Breezy

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 77.

    Low: 77 °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 93.

    High: 93 °F

    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73.

    Low: 73 °F

    Partly Cloudy
    then Chance
    T-storms

Detailed Forecast

Overnight
Clear, with a steady temperature around 63. Calm wind.
Friday
Sunny, with a high near 85. Calm wind becoming south southwest around 5 mph in the morning.
Friday Night
Increasing clouds, with a low around 69. South wind 5 to 11 mph, with gusts as high as 21 mph.
Saturday
A chance of showers and thunderstorms before noon, then a slight chance of showers between noon and 1pm. Partly sunny, with a high near 89. Breezy, with a south wind 11 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Partly cloudy, with a low around 76. Breezy, with a south wind 14 to 16 mph, with gusts as high as 24 mph.
Sunday
Mostly sunny, with a high near 95. Breezy.
Sunday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 77.
Monday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 93.
Monday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73.
Tuesday
Partly sunny, with a high near 92.
Tuesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 72.
Wednesday
Mostly sunny, with a high near 93.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Thursday
Mostly sunny, with a high near 93.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Winterset IA
 41.35°N 94.01°W
Last Update:
1:26 am CDT Aug 28, 2026
Forecast Valid:
1am CDT Aug 28, 2026-6pm CDT Sep 3, 2026
 
Forecast Discussion
 
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Additional Resources

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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