St Helena Weather Forecast

    • 3
    • 17

    Decreasing Clouds

    • 15
    • 28

    Chance Snow

    • 8
    • 36

    Slight Chance Snow

    • -9
    • 23

    Mostly Cloudy

    • -11
    • 1

    Mostly Cloudy

    • -1
    • 13

    Slight Chance Snow

    • 6
    • 24

    Partly Sunny

Today 19 Jan Cedar

Mostly cloudy and cooler. Near steady temperature around 16. West Winds 10 to 15 Mph. Wind chill Values as low as zero.

Tonight 19 Jan Cedar

Mostly cloudy this Evening, then clearing. Cold with Lows around 4 above. West Winds 5 to 10 Mph. Wind chill Values as low as 3 below.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

St Helena Temperature Statistics

January Temperature

Yankton, Chan Gurney Municipal Airport (9.9 miles)

  • Lowest 17 January, 2026

    1.9 °F

  • Average January

    30.5 °F

  • Highest 7 January, 2026

    59 °F

Climate (2021–Present)

Yankton, Chan Gurney Municipal Airport (9.9 miles)

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  • Average Low 2021–2026

    39.3 °F

  • Average 2021–2026

    50.3 °F

  • Average High 2021–2026

    61.5 °F
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