Williston Weather Forecast

    • 71
    • 91

    Chance Thunderstorms

    • 71
    • 90

    Chance Thunderstorms

    • 71
    • 90

    Thunderstorms Likely

    • 69
    • 88

    Thunderstorms Likely

    • 70
    • 88

    Chance Thunderstorms

    • 71
    • 91

    Slight Chance Thunderstorms

    • 72
    • 93

    Slight Chance Thunderstorms

Today 26 Aug Barnwell

Partly sunny with scattered Showers and Thunderstorms. Highs in the lower 90s. Southeast Winds around 5 Mph. Chance of rain 50 percent.

Tonight 26 Aug Barnwell

Mostly cloudy with scattered Showers and Thunderstorms. Patchy fog. Lows in the lower 70s. Southeast Winds around 5 Mph this Evening, becoming light and variable. Chance of rain 50 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

    81.4 °F

  • Highest 13 August, 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

    65.1 °F

  • Average High 2021–2026

    76.8 °F
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