Sullivan's Island Weather Forecast

    • 62
    • 69

    Slight Chance Thunderstorms

    • 62
    • 73

    Mostly Cloudy

    • 48
    • 70

    Rain Showers

    • 54
    • 63

    Partly Sunny

    • 60
    • 67

    Partly Sunny

    • 61
    • 71

    Rain Showers Likely

Today 10 Mar Charleston

Partly sunny. Patchy fog in the morning. A chance of Showers with a slight chance of Thunderstorms in the afternoon. Highs in the lower 80s, except in the mid 70s near the coast. Southwest Winds 5 to 10 Mph. Chance of rain 40 percent.

Tonight 10 Mar Charleston

Mostly cloudy. Patchy fog. Lows in the upper 50s. Southwest Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sullivan's Island Temperature Statistics

March Temperature

Mount Pleasant Regional-Faison Field (9.3 miles)

  • Lowest 2 March, 2026

    46.4 °F

  • Average March

    61.7 °F

  • Highest 6 March, 2026

    78.8 °F

Climate (2021–Present)

Mount Pleasant Regional-Faison Field (9.3 miles)

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  • Average Low 2021–2026

    58.3 °F

  • Average 2021–2026

    66.3 °F

  • Average High 2021–2026

    75.4 °F
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