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.

Mostly Cloudy

52°F

11°C

Humidity 61%
Wind Speed NW 17 G 29 mph
Barometer 30.19 in (1024.2 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 19 May 11:56 am CDT
Extended Forecast for

Yankton SD

Frost Advisory May 20, 01:00am until May 20, 08:00am
Click here for hazard details and duration
Frost Advisory

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 60. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 25 mph.

    High: 60 °F

    Mostly Sunny
    and Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 36. North northwest wind 10 to 15 mph becoming light and variable in the evening.

    Low: 36 °F

    Mostly Clear

  • Wednesday

    Wednesday: Areas of frost before 7am. Otherwise, mostly cloudy, with a high near 65. Light southeast wind becoming south southeast 5 to 10 mph in the morning.

    High: 65 °F

    Areas Frost
    then Mostly
    Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 42. Southeast wind 5 to 10 mph.

    Low: 42 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 65. Southeast wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 65 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 43. East southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 43 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Friday

    Friday: A 50 percent chance of showers. Mostly cloudy, with a high near 65.

    High: 65 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 40 percent chance of showers before 1am. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly cloudy, with a high near 74.

    High: 74 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 60. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 25 mph.
Tonight
Mostly clear, with a low around 36. North northwest wind 10 to 15 mph becoming light and variable in the evening.
Wednesday
Areas of frost before 7am. Otherwise, mostly cloudy, with a high near 65. Light southeast wind becoming south southeast 5 to 10 mph in the morning.
Wednesday Night
Mostly cloudy, with a low around 42. Southeast wind 5 to 10 mph.
Thursday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 65. Southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Thursday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 43. East southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Friday
A 50 percent chance of showers. Mostly cloudy, with a high near 65.
Friday Night
A 40 percent chance of showers before 1am. Mostly cloudy, with a low around 44.
Saturday
Mostly cloudy, with a high near 74.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
Mostly sunny, with a high near 84.
Sunday Night
Mostly clear, with a low around 56.
Memorial Day
Mostly sunny, with a high near 87.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Yankton SD
 42.88°N 97.4°W (Elev. 1204 ft)
Last Update:
12:03 pm CDT May 19, 2026
Forecast Valid:
12pm CDT May 19, 2026-6pm CDT May 25, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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