Saint Helena Sound Weather Forecast

    • 78
    • 87

    Chance Thunderstorms

    • 77
    • 86

    Chance Thunderstorms

    • 77
    • 85

    Chance Thunderstorms

    • 77
    • 86

    Mostly Sunny

    • 76
    • 86

    Chance Thunderstorms

    • 78
    • 85

    Slight Chance Thunderstorms

Today 15 Aug Coastal Colleton

Mostly sunny with a slight chance of Showers and Thunderstorms. Highs in the lower 90s. Heat index Values up to 108. South Winds around 5 Mph. Chance of rain 20 percent.

Tonight 15 Aug Coastal Colleton

Partly cloudy with a slight chance of Showers and Thunderstorms. Lows in the mid 70s. South Winds around 5 Mph in the Evening, becoming light and variable. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

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Saint Helena Sound Temperature Statistics

August Temperature

Beaufort County Airport (12.4 miles)

  • Lowest 3 August, 2025

    71.6 °F

  • Average August

    78.4 °F

  • Highest 1 August, 2025

    95 °F

Climate (2020–Present)

Beaufort County Airport (12.4 miles)

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  • Average Low 2020–2025

    59.6 °F

  • Average 2020–2025

    66.8 °F

  • Average High 2020–2025

    75.3 °F
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