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

88°F

31°C

Humidity 29%
Wind Speed NW 6 mph
Barometer 29.62 in (1003.5 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 15 May 4:56 pm CDT
Extended Forecast for

Yankton SD

  • Tonight

    Tonight: Partly cloudy, with a low around 53. North wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 20 mph.

    Low: 53 °F

    Partly Cloudy

  • Saturday

    Saturday: Increasing clouds, with a high near 86. North wind 5 to 10 mph becoming east 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 86 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 56. East southeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 56 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely, mainly after 4pm. Some of the storms could be severe. Cloudy, then gradually becoming mostly sunny, with a high near 88. East southeast wind around 15 mph becoming south southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 70%.

    High: 88 °F

    Showers
    Likely then
    Severe
    Thunderstorms

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely. Some of the storms could be severe. Increasing clouds, with a low around 50. South southeast wind 10 to 15 mph becoming north northwest in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 70%.

    Low: 50 °F

    Severe
    Thunderstorms

  • Monday

    Monday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 70. Breezy, with a north northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.

    High: 70 °F

    Chance
    Showers then
    Showers
    Likely and
    Breezy

  • Monday Night

    Monday Night: A 50 percent chance of showers before 1am. Mostly cloudy, with a low around 41. Breezy.

    Low: 41 °F

    Chance
    Showers and
    Breezy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 60. Breezy.

    High: 60 °F

    Mostly Cloudy
    and Breezy

  • Tuesday Night

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

    Low: 37 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 53. North wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 20 mph.
Saturday
Increasing clouds, with a high near 86. North wind 5 to 10 mph becoming east 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 56. East southeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely, mainly after 4pm. Some of the storms could be severe. Cloudy, then gradually becoming mostly sunny, with a high near 88. East southeast wind around 15 mph becoming south southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 70%.
Sunday Night
Showers and thunderstorms likely. Some of the storms could be severe. Increasing clouds, with a low around 50. South southeast wind 10 to 15 mph becoming north northwest in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 70%.
Monday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 70. Breezy, with a north northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.
Monday Night
A 50 percent chance of showers before 1am. Mostly cloudy, with a low around 41. Breezy.
Tuesday
Mostly cloudy, with a high near 60. Breezy.
Tuesday Night
Partly cloudy, with a low around 37.
Wednesday
Mostly sunny, with a high near 67.
Wednesday Night
Mostly cloudy, with a low around 44.
Thursday
Partly sunny, with a high near 75.
Thursday Night
Partly cloudy, with a low around 49.
Friday
Partly sunny, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Yankton SD
 42.88°N 97.4°W (Elev. 1204 ft)
Last Update:
5:23 pm CDT May 15, 2026
Forecast Valid:
6pm CDT May 15, 2026-6pm CDT May 22, 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