Williston Weather Forecast

    • 44
    • 66

    Becoming Sunny

    • 44
    • 63

    Sunny

    • 46
    • 67

    Sunny

    • 48
    • 72

    Mostly Sunny

    • 48
    • 74

    Mostly Sunny

    • 48
    • 74

    Mostly Sunny

Today 17 Oct Barnwell

Sunny. Highs in the mid 70s.

Tonight 17 Oct Barnwell

Mostly clear. Lows in the mid 40s. Northeast Winds 10 to 15 Mph. Gusts up to 30 Mph this evening.

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Williston Temperature Statistics

October Temperature

Barnwell Regional Airport (9.9 miles)

  • Lowest 8 October, 2026

    55.4 °F

  • Average October

    71.5 °F

  • Highest 1 October, 2026

    89.6 °F

Climate (2021–2026)

Barnwell Regional Airport (9.9 miles)

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  • Average Low 2021–2026

    54.5 °F

  • Average 2021–2026

    65.1 °F

  • Average High 2021–2026

    76.9 °F
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