St Helena Weather Forecast

    • 51
    • 76

    Increasing Clouds

    • 55
    • 83

    Partly Sunny

    • 61
    • 82

    Partly Sunny

    • 55
    • 88

    Slight Chance Thunderstorms

    • 54
    • 80

    Mostly Sunny

    • 60
    • 87

    Partly Sunny

Today 14 Jun Cedar

Sunny. Highs in the mid 70s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 14 Jun Cedar

Partly cloudy in the Evening, then clearing. Lows around 50. Northwest Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming west after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

St Helena Temperature Statistics

June Temperature

Yankton, Chan Gurney Municipal Airport (9.9 miles)

  • Lowest 1 June, 2026

    60.1 °F

  • Average June

    74.6 °F

  • Highest 9 June, 2026

    95 °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

    50.5 °F

  • Average High 2021–2026

    61.8 °F
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