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.

Fair

92°F

33°C

Humidity 52%
Wind Speed S 18 G 29 mph
Barometer 29.70 in (1004.6 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index100°F (38°C)
Last update 20 Jun 6:54 pm CDT
Extended Forecast for

Winterset IA

Heat Advisory June 20, 07:36pm until June 22, 09:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory June 20, 07:36pm until June 22, 09:00pm

    NOW until 9:00pm Sun

    Heat Advisory

  • Tonight

    Low: 77 °F

    Mostly Clear
    and Windy

  • Saturday

    Saturday: Sunny and hot, with a high near 97. Heat index values as high as 106. Windy, with a south southwest wind 23 to 28 mph, with gusts as high as 38 mph.

    High: 97 °F

    Hot and Windy

  • Saturday Night

    Saturday Night: Clear, with a low around 77. Windy, with a south southwest wind 20 to 22 mph, with gusts as high as 32 mph.

    Low: 77 °F

    Clear and
    Windy

  • Sunday

    Sunday: Sunny, with a high near 96. Heat index values as high as 101. Windy, with a south wind 20 to 26 mph, with gusts as high as 34 mph.

    High: 96 °F

    Sunny and
    Windy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 76. Windy, with a south wind 18 to 22 mph, with gusts as high as 32 mph.

    Low: 76 °F

    Mostly Clear
    and Windy

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 94. Breezy. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 94 °F

    Breezy. Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 69. Chance of precipitation is 80%.

    Low: 69 °F

    Showers

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 88. Chance of precipitation is 60%.

    High: 88 °F

    Showers
    Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 77. Windy, with a south southwest wind around 22 mph, with gusts as high as 32 mph.
Saturday
Sunny and hot, with a high near 97. Heat index values as high as 106. Windy, with a south southwest wind 23 to 28 mph, with gusts as high as 38 mph.
Saturday Night
Clear, with a low around 77. Windy, with a south southwest wind 20 to 22 mph, with gusts as high as 32 mph.
Sunday
Sunny, with a high near 96. Heat index values as high as 101. Windy, with a south wind 20 to 26 mph, with gusts as high as 34 mph.
Sunday Night
Mostly clear, with a low around 76. Windy, with a south wind 18 to 22 mph, with gusts as high as 32 mph.
Monday
A 50 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 94. Breezy. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers and possibly a thunderstorm. Low around 69. Chance of precipitation is 80%.
Tuesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 88. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 91. Chance of precipitation is 60%.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Thursday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Friday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Winterset IA
 41.33°N 94.01°W
Last Update:
6:25 pm CDT Jun 20, 2025
Forecast Valid:
7pm CDT Jun 20, 2025-6pm CDT Jun 27, 2025
 
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Additional Resources

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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