Barnwell Regional Airport Weather Forecast

    • 64
    • 89

    Becoming Sunny

    • 67
    • 91

    Mostly Sunny

    • 71
    • 93

    Mostly Sunny

    • 71
    • 92

    Slight Chance Thunderstorms

    • 71
    • 91

    Slight Chance Thunderstorms

    • 71
    • 90

    Chance Thunderstorms

Today 16 Sep Barnwell

Patchy fog in the morning. Sunny. Highs around 90. Northeast Winds 5 to 10 Mph.

Tonight 16 Sep Barnwell

Clear. Lows in the mid 60s. East Winds around 5 Mph in the Evening, becoming light and variable.

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Barnwell Regional Airport Temperature Statistics

September Temperature

Barnwell Regional Airport (0 miles)

  • Lowest 8 September, 2026

    68 °F

  • Average September

    81.1 °F

  • Highest 4 September, 2026

    96.8 °F

Climate (2021–2026)

Barnwell Regional Airport (0 miles)

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  • Average Low 2021–2026

    54.6 °F

  • Average 2021–2026

    65.1 °F

  • Average High 2021–2026

    76.9 °F
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