Williston Weather Forecast

    • 49
    • 68

    Rain Showers

    • 27
    • 58

    Chance Rain

    • 23
    • 47

    Mostly Sunny

    • 33
    • 51

    Partly Sunny

    • 49
    • 63

    Mostly Cloudy

    • 49
    • 69

    Chance Rain

Today 21 Feb Barnwell

Showers likely with a slight chance of Thunderstorms this Morning, then Showers with a chance of Thunderstorms this afternoon. Highs in the upper 60s. Northeast Winds around 5 Mph. Chance of rain 90 percent.

Tonight 21 Feb Barnwell

Mostly cloudy with a chance of Thunderstorms. A chance of Showers in the Evening, then Showers likely after midnight. Lows around 50. Northeast Winds around 5 Mph, becoming northwest after midnight. Chance of rain 70 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Williston Temperature Statistics

February Temperature

Barnwell Regional Airport (9.9 miles)

  • Lowest 1 February, 2026

    17.6 °F

  • Average February

    48.1 °F

  • Highest 19 February, 2026

    78.8 °F

Climate (2021–Present)

Barnwell Regional Airport (9.9 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    54.3 °F

  • Average 2021–2026

    64.9 °F

  • Average High 2021–2026

    76.6 °F
Get WillyWeather+ to remove ads