St Helena Weather Forecast

    • 24
    • 47

    Becoming Sunny

    • 30
    • 65

    Breezy

    • 29
    • 44

    Mostly Cloudy

    • 24
    • 50

    Rain/Snow Likely

    • 7
    • 32

    Chance Snow

    • 13
    • 31

    Mostly Cloudy

Today 11 Mar Cedar

Partly sunny with snow this Morning, then sunny this afternoon. Snow accumulation around half an inch. Highs in the mid 40s. Northwest Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of snow 90 percent.

Tonight 11 Mar Cedar

Mostly clear. Lows in the mid 20s. West Winds 10 to 15 Mph, becoming southwest after midnight.

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  • Temperature Real-Time

St Helena Temperature Statistics

March Temperature

Yankton, Chan Gurney Municipal Airport (9.9 miles)

  • Lowest 1 March, 2026

    10.9 °F

  • Average March

    40 °F

  • Highest 8 March, 2026

    75 °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

    50.4 °F

  • Average High 2021–2026

    61.7 °F
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