Williston Weather Forecast

    • 62
    • 80

    Rain Showers Likely

    • 60
    • 84

    Rain Showers Likely

    • 55
    • 77

    Chance Rain Showers

    • 54
    • 73

    Rain Showers Likely

    • 46
    • 67

    Chance Rain Showers

    • 46
    • 70

    Mostly Sunny

Today 28 Apr Barnwell

Partly sunny. A slight chance of Showers this afternoon. Highs in the lower 80s. Northeast Winds around 5 Mph, becoming southwest this afternoon. Chance of rain 20 percent.

Tonight 28 Apr Barnwell

Partly cloudy in the Evening, then mostly cloudy with a chance of Showers with a slight chance of Thunderstorms after midnight. Lows in the lower 60s. South Winds around 5 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Williston Temperature Statistics

April Temperature

Barnwell Regional Airport (9.9 miles)

  • Lowest 9 April, 2026

    42.8 °F

  • Average April

    67.2 °F

  • Highest 17 April, 2026

    91.4 °F

Climate (2021–Present)

Barnwell Regional Airport (9.9 miles)

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  • Average Low 2021–2026

    54.4 °F

  • Average 2021–2026

    65 °F

  • Average High 2021–2026

    76.7 °F
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