Williston Weather Forecast

    • 75
    • 94

    Slight Chance Thunderstorms

    • 75
    • 95

    Slight Chance Thunderstorms

    • 77
    • 96

    Partly Sunny

    • 76
    • 97

    Slight Chance Thunderstorms

    • 74
    • 96

    Chance Thunderstorms

    • 74
    • 94

    Slight Chance Thunderstorms

Today 11 Aug Barnwell

Mostly sunny with a slight chance of Showers and Thunderstorms. Near steady temperature in the mid 90s. West Winds around 5 Mph. Chance of rain 20 percent.

Tonight 11 Aug Barnwell

Partly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then mostly clear after midnight. Lows in the mid 70s. West Winds around 5 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Williston Temperature Statistics

August Temperature

Barnwell Regional Airport (9.9 miles)

  • Lowest 7 August, 2026

    71.6 °F

  • Average August

    78.2 °F

  • Highest 1 August, 2026

    95 °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

    76.8 °F
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