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

Yankton, Chan Gurney Municipal Airport (KYKN)

Lat: 42.92°NLon: 97.38°WElev: 1306ft.

Fair

61°F

16°C

Humidity 90%
Wind Speed Calm
Barometer 30.11 in (1020.3 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 27 Aug 2:56 am CDT
Extended Forecast for

Gayville SD

  • Overnight

    Overnight: Clear, with a low around 57. Calm wind.

    Low: 57 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 85. Calm wind becoming north northwest around 5 mph.

    High: 85 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 60. East southeast wind around 5 mph.

    Low: 60 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 86. Breezy, with a south wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 86 °F

    Partly Sunny
    then Mostly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 69. Breezy, with a south southeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.

    Low: 69 °F

    Chance
    T-storms then
    Showers
    Likely and
    Breezy

  • Saturday

    Saturday: Mostly sunny, with a high near 91. South southwest wind around 15 mph, with gusts as high as 30 mph.

    High: 91 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 72.

    Low: 72 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 70.

    Low: 70 °F

    Partly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 57. Calm wind.
Thursday
Sunny, with a high near 85. Calm wind becoming north northwest around 5 mph.
Thursday Night
Mostly clear, with a low around 60. East southeast wind around 5 mph.
Friday
Partly sunny, with a high near 86. Breezy, with a south wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 69. Breezy, with a south southeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Saturday
Mostly sunny, with a high near 91. South southwest wind around 15 mph, with gusts as high as 30 mph.
Saturday Night
Mostly cloudy, with a low around 72.
Sunday
Mostly sunny, with a high near 91.
Sunday Night
Partly cloudy, with a low around 70.
Monday
Partly sunny, with a high near 89.
Monday Night
Partly cloudy, with a low around 65.
Tuesday
Partly sunny, with a high near 87.
Tuesday Night
Partly cloudy, with a low around 66.
Wednesday
Mostly sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Gayville SD
 42.88°N 97.16°W (Elev. 1171 ft)
Last Update:
2:57 am CDT Aug 27, 2026
Forecast Valid:
3am CDT Aug 27, 2026-6pm CDT Sep 2, 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