Blackville Weather Forecast

    • 71
    • 88

    Becoming Sunny

    • 72
    • 91

    Chance Thunderstorms

    • 70
    • 84

    Thunderstorms Likely

    • 69
    • 81

    Rain Showers Likely

    • 69
    • 85

    Chance Thunderstorms

    • 65
    • 88

    Mostly Sunny

Today 20 Aug Barnwell

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

Tonight 20 Aug Barnwell

Partly cloudy this Evening, then clearing. Lows in the lower 70s. North Winds around 5 Mph.

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Blackville Temperature Statistics

August Temperature

Barnwell Regional Airport (9.3 miles)

  • Lowest 3 August, 2025

    66.2 °F

  • Average August

    77.8 °F

  • Highest 1 August, 2025

    95 °F

Climate (2020–Present)

Barnwell Regional Airport (9.3 miles)

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  • Average Low 2020–2025

    54.6 °F

  • Average 2020–2025

    65 °F

  • Average High 2020–2025

    76.6 °F
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