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

22°F

-6°C

Humidity 44%
Wind Speed NW 18 G 24 mph
Barometer 30.68 in (1043.3 mb)
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Wind Chill8°F (-13°C)
Last update 22 Feb 3:56 pm CST
Extended Forecast for

Saint Helena NE

  • Tonight

    Tonight: Mostly clear, with a low around 1. North northwest wind 9 to 14 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.

    Low: 1 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 34. Breezy, with a light and variable wind becoming south 15 to 20 mph in the morning. Winds could gust as high as 29 mph.

    High: 34 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 21. South wind 9 to 16 mph, with gusts as high as 25 mph.

    Low: 21 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 55. Breezy, with a southwest wind 9 to 14 mph becoming northwest 16 to 21 mph in the morning. Winds could gust as high as 30 mph.

    High: 55 °F

    Mostly Cloudy
    and Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 22. North northwest wind 6 to 13 mph, with gusts as high as 18 mph.

    Low: 22 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of snow before noon, then a chance of rain and snow. Partly sunny, with a high near 46. North wind 6 to 14 mph becoming south southeast in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 46 °F

    Slight Chance
    Snow then
    Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: A chance of rain and snow before midnight. Partly cloudy, with a low around 20. East wind around 10 mph becoming west northwest after midnight. Winds could gust as high as 16 mph. Chance of precipitation is 40%.

    Low: 20 °F

    Chance
    Rain/Snow
    then Partly
    Cloudy

  • Thursday

    Thursday: Sunny, with a high near 55. West northwest wind 10 to 15 mph, with gusts as high as 23 mph.

    High: 55 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 31. West northwest wind 8 to 10 mph becoming southwest after midnight.

    Low: 31 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 1. North northwest wind 9 to 14 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Monday
Sunny, with a high near 34. Breezy, with a light and variable wind becoming south 15 to 20 mph in the morning. Winds could gust as high as 29 mph.
Monday Night
Mostly cloudy, with a low around 21. South wind 9 to 16 mph, with gusts as high as 25 mph.
Tuesday
Mostly cloudy, with a high near 55. Breezy, with a southwest wind 9 to 14 mph becoming northwest 16 to 21 mph in the morning. Winds could gust as high as 30 mph.
Tuesday Night
Partly cloudy, with a low around 22. North northwest wind 6 to 13 mph, with gusts as high as 18 mph.
Wednesday
A slight chance of snow before noon, then a chance of rain and snow. Partly sunny, with a high near 46. North wind 6 to 14 mph becoming south southeast in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A chance of rain and snow before midnight. Partly cloudy, with a low around 20. East wind around 10 mph becoming west northwest after midnight. Winds could gust as high as 16 mph. Chance of precipitation is 40%.
Thursday
Sunny, with a high near 55. West northwest wind 10 to 15 mph, with gusts as high as 23 mph.
Thursday Night
Mostly clear, with a low around 31. West northwest wind 8 to 10 mph becoming southwest after midnight.
Friday
Sunny, with a high near 64. West southwest wind 10 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph.
Friday Night
A slight chance of snow. Mostly cloudy, with a low around 22. Northwest wind 10 to 16 mph becoming north northeast in the evening. Winds could gust as high as 22 mph.
Saturday
Partly sunny, with a high near 40. North wind 13 to 17 mph, with gusts as high as 24 mph.
Saturday Night
Partly cloudy, with a low around 14. Northeast wind 9 to 11 mph, with gusts as high as 17 mph.
Sunday
A slight chance of snow. Mostly cloudy, with a high near 36. East wind 9 to 11 mph, with gusts as high as 20 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Helena NE
 42.82°N 97.25°W (Elev. 1184 ft)
Last Update:
3:35 pm CST Feb 22, 2026
Forecast Valid:
4pm CST Feb 22, 2026-6pm CST Mar 1, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation