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

Hazardous Weather Conditions

Current conditions at

Des Moines International Airport (KDSM)

Lat: 41.53°NLon: 93.65°WElev: 942ft.

A Few Clouds

82°F

28°C

Humidity 60%
Wind Speed S 7 mph
Barometer 29.92 in (1012.1 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 1 Sep 10:54 pm CDT
Extended Forecast for

Winterset IA

Heat Advisory September 1, 11:44pm until September 3, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 1, 11:44pm until September 3, 07:00pm

    NOW until 7:00pm Thu

    Heat Advisory

  • Tonight

    Low: 76 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 93. Heat index values as high as 101. South southwest wind 8 to 11 mph, with gusts as high as 18 mph.

    High: 93 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 77. South wind 6 to 9 mph.

    Low: 77 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 91. Heat index values as high as 101. South southwest wind 8 to 11 mph, with gusts as high as 18 mph.

    High: 91 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 75. South wind around 8 mph.

    Low: 75 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 73.

    Low: 73 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny

Detailed Forecast

Tonight
Partly cloudy, with a low around 76. South wind 7 to 9 mph.
Wednesday
Sunny, with a high near 93. Heat index values as high as 101. South southwest wind 8 to 11 mph, with gusts as high as 18 mph.
Wednesday Night
Mostly clear, with a low around 77. South wind 6 to 9 mph.
Thursday
Mostly sunny, with a high near 91. Heat index values as high as 101. South southwest wind 8 to 11 mph, with gusts as high as 18 mph.
Thursday Night
Mostly clear, with a low around 75. South wind around 8 mph.
Friday
Mostly sunny, with a high near 92.
Friday Night
Partly cloudy, with a low around 73.
Saturday
Mostly sunny, with a high near 93.
Saturday Night
Partly cloudy, with a low around 71.
Sunday
A 30 percent chance of showers before 1pm. Mostly sunny, with a high near 90.
Sunday Night
Partly cloudy, with a low around 69.
Labor Day
Partly sunny, with a high near 86.
Monday Night
Partly cloudy, with a low around 68.
Tuesday
Mostly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Winterset IA
 41.33°N 94.04°W
Last Update:
10:36 pm CDT Sep 1, 2026
Forecast Valid:
11pm CDT Sep 1, 2026-6pm CDT Sep 8, 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