Sullivan's Island Weather Forecast

    • 82
    • 89

    Chance Thunderstorms

    • 82
    • 89

    Chance Thunderstorms

    • 81
    • 91

    Partly Sunny

    • 82
    • 91

    Slight Chance Thunderstorms

    • 83
    • 92

    Slight Chance Thunderstorms

    • 81
    • 92

    Chance Thunderstorms

Today 6 Jul Charleston

Sunny. A slight chance of Showers and Thunderstorms in the afternoon. Highs in the mid 90s. Heat index Values up to 107. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

Tonight 6 Jul Charleston

Mostly clear with a chance of Showers and Thunderstorms in the Evening, then partly cloudy with a slight chance of Showers and Thunderstorms after midnight. Lows around 80. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sullivan's Island Temperature Statistics

July Temperature

Mount Pleasant Regional-Faison Field (9.3 miles)

  • Lowest 2 July, 2026

    69.8 °F

  • Average July

    80.7 °F

  • Highest 2 July, 2026

    89.6 °F

Climate (2021–2026)

Mount Pleasant Regional-Faison Field (9.3 miles)

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  • Average Low 2021–2026

    58.3 °F

  • Average 2021–2026

    66.4 °F

  • Average High 2021–2026

    75.5 °F
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