Williston Weather Forecast

    • 72
    • 90

    Slight Chance Thunderstorms

    • 72
    • 86

    Rain Showers Likely

    • 75
    • 96

    Slight Chance Thunderstorms

    • 74
    • 98

    Slight Chance Thunderstorms

    • 72
    • 94

    Chance Thunderstorms

    • 72
    • 92

    Thunderstorms Likely

    • 72
    • 91

    Thunderstorms Likely

Today 5 Jul Barnwell

Mostly sunny with a slight chance of Showers and Thunderstorms. Near steady temperature in the upper 80s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

Tonight 5 Jul Barnwell

Partly cloudy with a slight chance of Showers and Thunderstorms. Lows in the lower 70s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Williston Temperature Statistics

July Temperature

Barnwell Regional Airport (9.9 miles)

  • Lowest 3 July, 2025

    71.6 °F

  • Average July

    80.4 °F

  • Highest 3 July, 2025

    91.4 °F

Climate (2020–Present)

Barnwell Regional Airport (9.9 miles)

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  • Average Low 2020–2025

    54.6 °F

  • Average 2020–2025

    65 °F

  • Average High 2020–2025

    76.7 °F
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