Williston Weather Forecast

    • 68
    • 87

    Decreasing Clouds

    • 72
    • 91

    Mostly Sunny

    • 74
    • 92

    Chance Thunderstorms

    • 72
    • 93

    Slight Chance Thunderstorms

    • 71
    • 91

    Slight Chance Thunderstorms

    • 71
    • 91

    Chance Thunderstorms

    • 72
    • 92

    Chance Thunderstorms

Today 20 Jun Barnwell

Partly sunny. Near steady temperature in the upper 80s. North Winds around 5 Mph.

Tonight 20 Jun Barnwell

Mostly cloudy. Lows in the upper 60s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Williston Temperature Statistics

June Temperature

Barnwell Regional Airport (9.9 miles)

  • Lowest 4 June, 2026

    53.6 °F

  • Average June

    77.3 °F

  • Highest 12 June, 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 °F

  • Average High 2021–2026

    76.7 °F
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