Williston Weather Forecast

    • 62
    • 86

    Mostly Sunny

    • 63
    • 88

    Mostly Sunny

    • 67
    • 88

    Mostly Sunny

    • 70
    • 88

    Chance Rain Showers

    • 69
    • 86

    Rain Showers Likely

    • 65
    • 81

    Rain Showers Likely

Today 29 Sep Barnwell

Sunny. Highs in the upper 80s. East Winds around 5 Mph.

Tonight 29 Sep Barnwell

Mostly clear. Lows in the lower 60s. Light and variable Winds.

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  • Temperature Real-Time

Williston Temperature Statistics

September Temperature

Barnwell Regional Airport (9.9 miles)

  • Lowest 26 September, 2026

    48.2 °F

  • Average September

    77.2 °F

  • Highest 4 September, 2026

    96.8 °F

Climate (2021–2026)

Barnwell Regional Airport (9.9 miles)

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  • Average Low 2021–2026

    54.6 °F

  • Average 2021–2026

    65.1 °F

  • Average High 2021–2026

    76.9 °F
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