Barnwell Weather Forecast

    • 64
    • 92

    Increasing Clouds

    • 67
    • 93

    Partly Sunny

    • 67
    • 93

    Slight Chance Thunderstorms

    • 67
    • 89

    Chance Thunderstorms

    • 68
    • 90

    Chance Thunderstorms

    • 68
    • 89

    Chance Thunderstorms

Today 19 May Barnwell

Sunny. Highs in the lower 90s. Light and variable Winds, becoming southeast around 5 Mph in the afternoon.

Tonight 19 May Barnwell

Mostly clear in the Evening, then becoming partly cloudy. Lows in the mid 60s. South Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Barnwell Temperature Statistics

May Temperature

Barnwell Regional Airport (1.9 miles)

  • Lowest 4 May, 2026

    46.4 °F

  • Average May

    67.4 °F

  • Highest 6 May, 2026

    89.6 °F

Climate (2021–Present)

Barnwell Regional Airport (1.9 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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