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 and Breezy

84°F

29°C

Humidity 27%
Wind Speed S 24 G 35 mph
Barometer 29.79 in (1008.6 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 25 May 10:56 pm CDT
Extended Forecast for

Saint Helena NE

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 62. South wind 11 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 91. South wind 8 to 15 mph, with gusts as high as 23 mph.

    High: 91 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 60. South wind 7 to 13 mph, with gusts as high as 20 mph.

    Low: 60 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 89. Light south southeast wind becoming east southeast 8 to 13 mph in the morning. Winds could gust as high as 21 mph.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 58. East southeast wind 6 to 14 mph, with gusts as high as 21 mph.

    Low: 58 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 87. East wind 7 to 15 mph, with gusts as high as 23 mph.

    High: 87 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 59. Southeast wind 8 to 15 mph, with gusts as high as 22 mph.

    Low: 59 °F

    Mostly Cloudy

  • Friday

    Friday: A slight chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 83. Southeast wind 8 to 15 mph, with gusts as high as 23 mph.

    High: 83 °F

    Cloudy then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 56. Southeast wind 8 to 14 mph, with gusts as high as 21 mph.

    Low: 56 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 62. South wind 11 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 91. South wind 8 to 15 mph, with gusts as high as 23 mph.
Tuesday Night
Partly cloudy, with a low around 60. South wind 7 to 13 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 89. Light south southeast wind becoming east southeast 8 to 13 mph in the morning. Winds could gust as high as 21 mph.
Wednesday Night
Partly cloudy, with a low around 58. East southeast wind 6 to 14 mph, with gusts as high as 21 mph.
Thursday
Partly sunny, with a high near 87. East wind 7 to 15 mph, with gusts as high as 23 mph.
Thursday Night
Mostly cloudy, with a low around 59. Southeast wind 8 to 15 mph, with gusts as high as 22 mph.
Friday
A slight chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 83. Southeast wind 8 to 15 mph, with gusts as high as 23 mph.
Friday Night
Mostly cloudy, with a low around 56. Southeast wind 8 to 14 mph, with gusts as high as 21 mph.
Saturday
A slight chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 79. Southeast wind 8 to 15 mph, with gusts as high as 24 mph.
Saturday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 55. East southeast wind 9 to 15 mph, with gusts as high as 21 mph.
Sunday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 81. Southeast wind 8 to 14 mph, with gusts as high as 21 mph.
Sunday Night
Partly cloudy, with a low around 53. Southeast wind 6 to 13 mph.
Monday
Mostly sunny, with a high near 83. South southeast wind 6 to 9 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Helena NE
 42.82°N 97.25°W (Elev. 1184 ft)
Last Update:
11:36 pm CDT May 25, 2026
Forecast Valid:
11pm CDT May 25, 2026-6pm CDT Jun 1, 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