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

67°F

19°C

Humidity 91%
Wind Speed SE 9 mph
Barometer 29.85 in (1011.0 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 3 Aug 6:56 am CDT
Extended Forecast for

Mayfield SD

  • Today

    Today: Mostly sunny, with a high near 93. Windy, with a south southeast wind 10 to 20 mph increasing to 20 to 30 mph in the afternoon. Winds could gust as high as 40 mph.

    High: 93 °F

    Mostly Sunny
    and Windy

  • Tonight

    Tonight: Showers and thunderstorms likely. Patchy smoke after 11pm. Increasing clouds, with a low around 62. Breezy, with a south wind 15 to 25 mph becoming north after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Breezy.
    Chance
    T-storms then
    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers and thunderstorms. Patchy smoke before 3pm. Partly sunny, with a high near 75. North wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.

    High: 75 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Cloudy during the early evening, then gradual clearing, with a low around 56. East wind around 5 mph becoming calm after midnight.

    Low: 56 °F

    Gradual
    Clearing

  • Wednesday

    Wednesday: Partly sunny, with a high near 79. Calm wind becoming east southeast around 5 mph in the afternoon.

    High: 79 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56. South wind around 5 mph.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 93. Windy, with a south southeast wind 10 to 20 mph increasing to 20 to 30 mph in the afternoon. Winds could gust as high as 40 mph.
Tonight
Showers and thunderstorms likely. Patchy smoke after 11pm. Increasing clouds, with a low around 62. Breezy, with a south wind 15 to 25 mph becoming north after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers and thunderstorms. Patchy smoke before 3pm. Partly sunny, with a high near 75. North wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Tuesday Night
Cloudy during the early evening, then gradual clearing, with a low around 56. East wind around 5 mph becoming calm after midnight.
Wednesday
Partly sunny, with a high near 79. Calm wind becoming east southeast around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 56. South wind around 5 mph.
Thursday
Sunny, with a high near 85.
Thursday Night
Partly cloudy, with a low around 63.
Friday
Sunny, with a high near 88.
Friday Night
Mostly clear, with a low around 67.
Saturday
Sunny, with a high near 92.
Saturday Night
Mostly clear, with a low around 71.
Sunday
Mostly sunny, with a high near 93.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mayfield SD
 43.08°N 97.31°W (Elev. 1342 ft)
Last Update:
6:48 am CDT Aug 3, 2026
Forecast Valid:
7am CDT Aug 3, 2026-6pm CDT Aug 9, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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