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.

A Few Clouds

69°F

21°C

Humidity 35%
Wind Speed E 13 G 17 mph
Barometer 29.72 in (1006.8 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 16 May 11:56 pm CDT
Extended Forecast for

Mayfield SD

  • Overnight

    Overnight: Showers and thunderstorms likely, then showers after 4am. Low around 58. Breezy, with an east wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 58 °F

    Showers and
    Breezy

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms, mainly after 3pm. Some of the storms could be severe. Mostly cloudy, with a high near 86. Breezy, with a southeast wind around 20 mph, with gusts as high as 30 mph.

    High: 86 °F

    Severe
    Thunderstorms
    and Breezy

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely before 4am, then a chance of showers. Some of the storms could be severe. Cloudy, with a low around 48. Breezy, with a north northwest wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 48 °F

    Severe
    Thunderstorms
    and Breezy

  • Monday

    Monday: Showers likely, mainly after 1pm. Cloudy, with a high near 59. Breezy, with a north wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    High: 59 °F

    Chance
    Showers and
    Breezy then
    Showers
    Likely

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Low around 41. Breezy, with a north wind 20 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 80%.

    Low: 41 °F

    Showers and
    Breezy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 55. Windy, with a northwest wind 20 to 30 mph, with gusts as high as 40 mph.

    High: 55 °F

    Mostly Cloudy
    and Windy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

Detailed Forecast

Overnight
Showers and thunderstorms likely, then showers after 4am. Low around 58. Breezy, with an east wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
A 40 percent chance of showers and thunderstorms, mainly after 3pm. Some of the storms could be severe. Mostly cloudy, with a high near 86. Breezy, with a southeast wind around 20 mph, with gusts as high as 30 mph.
Sunday Night
Showers and thunderstorms likely before 4am, then a chance of showers. Some of the storms could be severe. Cloudy, with a low around 48. Breezy, with a north northwest wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Monday
Showers likely, mainly after 1pm. Cloudy, with a high near 59. Breezy, with a north wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Monday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Low around 41. Breezy, with a north wind 20 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 80%.
Tuesday
Mostly cloudy, with a high near 55. Windy, with a northwest wind 20 to 30 mph, with gusts as high as 40 mph.
Tuesday Night
Partly cloudy, with a low around 37.
Wednesday
Mostly sunny, with a high near 64.
Wednesday Night
Partly cloudy, with a low around 42.
Thursday
Partly sunny, with a high near 68.
Thursday Night
Partly cloudy, with a low around 46.
Friday
Partly sunny, with a high near 72.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 51.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mayfield SD
 43.08°N 97.31°W (Elev. 1342 ft)
Last Update:
12:03 am CDT May 17, 2026
Forecast Valid:
12am CDT May 17, 2026-6pm CDT May 23, 2026
 
Forecast Discussion
 
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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