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.

Partly Cloudy

77°F

25°C

Humidity 94%
Wind Speed S 5 mph
Barometer 29.80 in (1009.0 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 23 Jul 6:56 am CDT
Extended Forecast for

3 Miles WSW Mayfield SD

  • Today

    Today: Showers and thunderstorms likely, mainly before 3pm. Some of the storms could be severe. Mostly sunny, with a high near 92. Heat index values as high as 105. South southeast wind 10 to 15 mph becoming west southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 92 °F

    Showers
    Likely then
    Severe
    Thunderstorms

  • Tonight

    Tonight: Showers and thunderstorms likely before 4am, then a slight chance of showers. Some of the storms could be severe. Mostly cloudy, with a low around 69. North northwest wind 5 to 10 mph becoming south southwest in the evening. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Severe
    Thunderstorms
    then Chance
    T-storms

  • Thursday

    Thursday: A 10 percent chance of showers before 7am. Partly sunny, with a high near 85. Northwest wind 5 to 10 mph becoming north northeast in the afternoon.

    High: 85 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 66. East wind around 5 mph.

    Low: 66 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 85. East southeast wind 5 to 10 mph.

    High: 85 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 67. Southeast wind 5 to 10 mph.

    Low: 67 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny

  • Saturday Night

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

    Low: 72 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 95.

    High: 95 °F

    Hot

Detailed Forecast

Today
Showers and thunderstorms likely, mainly before 3pm. Some of the storms could be severe. Mostly sunny, with a high near 92. Heat index values as high as 105. South southeast wind 10 to 15 mph becoming west southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely before 4am, then a slight chance of showers. Some of the storms could be severe. Mostly cloudy, with a low around 69. North northwest wind 5 to 10 mph becoming south southwest in the evening. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A 10 percent chance of showers before 7am. Partly sunny, with a high near 85. Northwest wind 5 to 10 mph becoming north northeast in the afternoon.
Thursday Night
Partly cloudy, with a low around 66. East wind around 5 mph.
Friday
Partly sunny, with a high near 85. East southeast wind 5 to 10 mph.
Friday Night
Partly cloudy, with a low around 67. Southeast wind 5 to 10 mph.
Saturday
Mostly sunny, with a high near 92.
Saturday Night
Mostly clear, with a low around 72.
Sunday
Sunny and hot, with a high near 95.
Sunday Night
Mostly clear, with a low around 72.
Monday
Sunny, with a high near 94.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Tuesday
Partly sunny, with a high near 86.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Mayfield SD
 43.05°N 97.37°W (Elev. 1247 ft)
Last Update:
6:45 am CDT Jul 23, 2025
Forecast Valid:
7am CDT Jul 23, 2025-6pm CDT Jul 29, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation