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

54°F

12°C

Humidity 69%
Wind Speed E 5 mph
Barometer 30.12 in (1021.9 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 14 Oct 5:56 pm CDT
Extended Forecast for

Saint Helena NE

  • Tonight

    Tonight: Showers likely, mainly after 4am. Increasing clouds, with a low around 45. East northeast wind 3 to 6 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 45 °F

    Mostly Cloudy
    then Showers
    Likely

  • Thursday

    Thursday: Showers, mainly before 3pm. High near 58. Northwest wind 7 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 58 °F

    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 40. Windy, with a northwest wind 21 to 25 mph, with gusts as high as 39 mph.

    Low: 40 °F

    Mostly Cloudy
    and Windy

  • Friday

    Friday: Cloudy through mid morning, then gradual clearing, with a high near 53. Windy, with a north northwest wind 23 to 28 mph decreasing to 16 to 21 mph in the afternoon. Winds could gust as high as 44 mph.

    High: 53 °F

    Becoming
    Sunny and
    Windy

  • Friday Night

    Friday Night: Widespread frost, mainly after 5am. Otherwise, clear, with a low around 33. Light and variable wind becoming south 5 to 7 mph after midnight.

    Low: 33 °F

    Frost

  • Saturday

    Saturday: Sunny, with a high near 63. Breezy, with a south wind 10 to 20 mph, with gusts as high as 31 mph.

    High: 63 °F

    Sunny then
    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Clear, with a low around 43. South wind 14 to 16 mph, with gusts as high as 28 mph.

    Low: 43 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 67. South southwest wind 13 to 16 mph, with gusts as high as 25 mph.

    High: 67 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 45. South wind 3 to 6 mph.

    Low: 45 °F

    Partly Cloudy

Detailed Forecast

Tonight
Showers likely, mainly after 4am. Increasing clouds, with a low around 45. East northeast wind 3 to 6 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Showers, mainly before 3pm. High near 58. Northwest wind 7 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Mostly cloudy, with a low around 40. Windy, with a northwest wind 21 to 25 mph, with gusts as high as 39 mph.
Friday
Cloudy through mid morning, then gradual clearing, with a high near 53. Windy, with a north northwest wind 23 to 28 mph decreasing to 16 to 21 mph in the afternoon. Winds could gust as high as 44 mph.
Friday Night
Widespread frost, mainly after 5am. Otherwise, clear, with a low around 33. Light and variable wind becoming south 5 to 7 mph after midnight.
Saturday
Sunny, with a high near 63. Breezy, with a south wind 10 to 20 mph, with gusts as high as 31 mph.
Saturday Night
Clear, with a low around 43. South wind 14 to 16 mph, with gusts as high as 28 mph.
Sunday
Sunny, with a high near 67. South southwest wind 13 to 16 mph, with gusts as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 45. South wind 3 to 6 mph.
Monday
Mostly sunny, with a high near 68. Light southeast wind becoming east southeast 5 to 9 mph in the morning. Winds could gust as high as 16 mph.
Monday Night
Mostly clear, with a low around 48. South southeast wind around 7 mph.
Tuesday
Sunny, with a high near 73. South southeast wind 8 to 16 mph, with gusts as high as 26 mph.
Tuesday Night
Mostly clear, with a low around 53. South southeast wind around 11 mph, with gusts as high as 20 mph.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 73. South wind 11 to 15 mph, with gusts as high as 25 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Helena NE
 42.82°N 97.25°W (Elev. 1184 ft)
Last Update:
5:51 pm CDT Oct 14, 2026
Forecast Valid:
6pm CDT Oct 14, 2026-6pm CDT Oct 21, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation