Sullivan's Island Weather Forecast

    • 79
    • 85

    Chance Thunderstorms

    • 76
    • 85

    Thunderstorms Likely

    • 77
    • 86

    Chance Thunderstorms

    • 77
    • 88

    Slight Chance Thunderstorms

    • 76
    • 86

    Partly Sunny

    • 77
    • 84

    Chance Thunderstorms

    • 78
    • 86

    Chance Thunderstorms

Today 1 Jul Charleston

Sunny with a slight chance of Showers and Thunderstorms. Highs in the upper 80s. South Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 20 percent.

Tonight 1 Jul Charleston

Mostly clear this Evening, then becoming partly cloudy. A slight chance of Showers and Thunderstorms. Lows in the upper 70s. Southwest Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 20 percent.

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Sullivan's Island Temperature Statistics

July Temperature

Mount Pleasant Regional-Faison Field (9.3 miles)

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  • Average July

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Climate (2020–Present)

Mount Pleasant Regional-Faison Field (9.3 miles)

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  • Average Low 2020–2025

    58.6 °F

  • Average 2020–2025

    66.6 °F

  • Average High 2020–2025

    75.5 °F
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