Williston Weather Forecast

    • 73
    • 88

    Rain Showers Likely

    • 71
    • 89

    Rain Showers Likely

    • 71
    • 90

    Chance Thunderstorms

    • 72
    • 93

    Mostly Sunny

    • 74
    • 95

    Slight Chance Thunderstorms

    • 73
    • 95

    Chance Thunderstorms

Today 24 Jul Barnwell

Partly sunny. A slight chance of Showers and Thunderstorms this Morning, then a chance of Showers and Thunderstorms this afternoon. Highs in the upper 80s. Light and variable Winds, becoming west around 5 Mph this afternoon. Chance of rain 50 percent.

Tonight 24 Jul Barnwell

Mostly cloudy. Showers likely with a chance of Thunderstorms in the Evening, then a chance of Showers with a slight chance of Thunderstorms after midnight. Humid with Lows in the lower 70s. Light and variable Winds. Chance of rain 60 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Williston Temperature Statistics

July Temperature

Barnwell Regional Airport (9.9 miles)

  • Lowest 2 July, 2026

    69.8 °F

  • Average July

    84.2 °F

  • Highest 4 July, 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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