South Dewees Island Weather Forecast

    • 63
    • 72

    Rain Showers Likely

    • 37
    • 71

    Rain Showers

    • 39
    • 53

    Partly Sunny

    • 44
    • 57

    Partly Sunny

    • 48
    • 63

    Mostly Sunny

    • 54
    • 67

    Mostly Sunny

Today 15 Mar Charleston

Partly sunny with a chance of Showers and Thunderstorms. Highs in the upper 70s, except in the lower 70s near the coast. East Winds 5 to 10 Mph, becoming southeast with Gusts up to 20 Mph this afternoon. Chance of rain 50 percent.

Tonight 15 Mar Charleston

Mostly cloudy with a chance of Showers and Thunderstorms. Lows in the lower 60s. South 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

South Dewees Island Temperature Statistics

March Temperature

Mount Pleasant Regional-Faison Field (5 miles)

  • Lowest 2 March, 2026

    46.4 °F

  • Average March

    65.2 °F

  • Highest 10 March, 2026

    84.2 °F

Climate (2021–Present)

Mount Pleasant Regional-Faison Field (5 miles)

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  • Average Low 2021–2026

    58.3 °F

  • Average 2021–2026

    66.4 °F

  • Average High 2021–2026

    75.4 °F
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