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

Hazardous Weather Conditions

Current conditions at

Yankton, Chan Gurney Municipal Airport (KYKN)

Lat: 42.92°NLon: 97.38°WElev: 1306ft.

Fair

76°F

24°C

Humidity 91%
Wind Speed E 10 mph
Barometer 29.86 in (1011.4 mb)
Dewpoint 73°F (23°C)
Visibility 9.00 mi
Heat Index76°F (24°C)
Last update 15 Aug 9:56 am CDT
Extended Forecast for

Lesterville SD

  • Today

    Today: Partly sunny, with a high near 92. Heat index values as high as 103. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 92 °F

    Partly Sunny

  • Tonight

    Tonight: A 10 percent chance of showers after 5am. Partly cloudy, with a low around 72. Southeast wind around 10 mph.

    Low: 72 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny and hot, with a high near 96. Heat index values as high as 103. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 96 °F

    Hot

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 73. Southeast wind around 10 mph.

    Low: 73 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92. South wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 92 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. South wind 5 to 10 mph becoming east after midnight.

    Low: 70 °F

    Chance
    T-storms

  • Monday

    Monday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 69.

    Low: 69 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 92. Heat index values as high as 103. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Tonight
A 10 percent chance of showers after 5am. Partly cloudy, with a low around 72. Southeast wind around 10 mph.
Saturday
Mostly sunny and hot, with a high near 96. Heat index values as high as 103. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 73. Southeast wind around 10 mph.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92. South wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. South wind 5 to 10 mph becoming east after midnight.
Monday
Sunny, with a high near 92.
Monday Night
Partly cloudy, with a low around 69.
Tuesday
Mostly sunny, with a high near 90.
Tuesday Night
Partly cloudy, with a low around 65.
Wednesday
Mostly sunny, with a high near 89.
Wednesday Night
Mostly clear, with a low around 64.
Thursday
Sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lesterville SD
 43.03°N 97.58°W (Elev. 1362 ft)
Last Update:
10:26 am CDT Aug 15, 2025
Forecast Valid:
11am CDT Aug 15, 2025-6pm CDT Aug 21, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation