Williston Weather Forecast

    • 44
    • 62

    Rain Showers Likely

    • 41
    • 63

    Partly Sunny

    • 38
    • 65

    Sunny

    • 40
    • 66

    Mostly Sunny

    • 44
    • 68

    Mostly Sunny

    • 47
    • 71

    Mostly Sunny

Today 29 Oct Barnwell

Cloudy. Patchy fog this morning. A chance of Showers this afternoon. Highs in the lower 60s. East Winds 5 to 10 Mph. Chance of rain 40 percent.

Tonight 29 Oct Barnwell

Mostly cloudy with a 50 percent chance of Showers. Lows in the mid 40s. Southeast Winds 5 to 10 Mph, becoming west after midnight.

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Williston Temperature Statistics

October Temperature

Barnwell Regional Airport (9.9 miles)

  • Lowest 23 October, 2025

    39.2 °F

  • Average October

    65.3 °F

  • Highest 8 October, 2025

    87.8 °F

Climate (2020–Present)

Barnwell Regional Airport (9.9 miles)

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  • Average Low 2020–2025

    54.5 °F

  • Average 2020–2025

    64.9 °F

  • Average High 2020–2025

    76.6 °F
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