Williston Weather Forecast

    • 68
    • 90

    Mostly Sunny

    • 68
    • 89

    Partly Sunny

    • 72
    • 92

    Partly Sunny

    • 74
    • 95

    Slight Chance Thunderstorms

    • 75
    • 96

    Mostly Sunny

    • 74
    • 98

    Chance Thunderstorms

    • 73
    • 96

    Chance Thunderstorms

Today 23 Jun Barnwell

Sunny. Near steady temperature around 90. West Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 23 Jun Barnwell

Mostly clear. Lows in the upper 60s. West Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming north after midnight.

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Williston Temperature Statistics

June Temperature

Barnwell Regional Airport (9.9 miles)

  • Lowest 4 June, 2026

    53.6 °F

  • Average June

    77.5 °F

  • Highest 12 June, 2026

    98.6 °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 °F

  • Average High 2021–2026

    76.7 °F
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