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

34°F

1°C

Humidity 59%
Wind Speed Calm
Barometer 30.15 in (1023.1 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 12 Jan 3:56 am CST
Extended Forecast for

Avon SD

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 58. West wind around 10 mph.

    High: 58 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 39. West southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 39 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A slight chance of rain between noon and 3pm. Mostly cloudy, with a high near 55. Breezy, with a west northwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 20%.

    High: 55 °F

    Breezy.
    Mostly Cloudy
    then Slight
    Chance Rain

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 25. Blustery, with a north northwest wind around 20 mph, with gusts as high as 30 mph.

    Low: 25 °F

    Mostly Cloudy
    and Blustery

  • Wednesday

    Wednesday: Mostly sunny, with a high near 32. Breezy, with a north wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 32 °F

    Mostly Sunny
    and Breezy
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 19. North wind 5 to 10 mph becoming south after midnight.

    Low: 19 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 47. Breezy.

    High: 47 °F

    Partly Sunny
    then Mostly
    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 26. Blustery.

    Low: 26 °F

    Blustery.
    Mostly Cloudy
    then Slight
    Chance Snow

  • Friday

    Friday: A 40 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 32. Breezy.

    High: 32 °F

    Chance Snow
    and Breezy

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 58. West wind around 10 mph.
Tonight
Increasing clouds, with a low around 39. West southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday
A slight chance of rain between noon and 3pm. Mostly cloudy, with a high near 55. Breezy, with a west northwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 20%.
Tuesday Night
Mostly cloudy, with a low around 25. Blustery, with a north northwest wind around 20 mph, with gusts as high as 30 mph.
Wednesday
Mostly sunny, with a high near 32. Breezy, with a north wind 10 to 20 mph, with gusts as high as 30 mph.
Wednesday Night
Partly cloudy, with a low around 19. North wind 5 to 10 mph becoming south after midnight.
Thursday
Partly sunny, with a high near 47. Breezy.
Thursday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 26. Blustery.
Friday
A 40 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 32. Breezy.
Friday Night
Mostly cloudy, with a low around 11. Blustery.
Saturday
Partly sunny, with a high near 24.
Saturday Night
Partly cloudy, with a low around 11.
Sunday
Mostly sunny, with a high near 36.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Avon SD
 43°N 98.05°W (Elev. 1647 ft)
Last Update:
3:59 am CST Jan 12, 2026
Forecast Valid:
4am CST Jan 12, 2026-6pm CST Jan 18, 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