South Dewees Island Weather Forecast

    • 60
    • 72

    Chance Thunderstorms

    • 61
    • 73

    Slight Chance Thunderstorms

    • 62
    • 75

    Chance Rain Showers

    • 61
    • 74

    Mostly Cloudy

    • 48
    • 70

    Chance Rain Showers

    • 54
    • 64

    Mostly Sunny

Today 8 Mar Charleston

Patchy fog in the morning. Mostly cloudy in the Morning, then mostly sunny with a chance of Showers and Thunderstorms in the afternoon. Highs in the upper 70s, except in the lower 70s near the coast. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 50 percent.

Tonight 8 Mar Charleston

Mostly cloudy. Patchy fog. Lows in the lower 60s. Southwest Winds 5 to 10 Mph.

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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

    58.8 °F

  • Highest 5 March, 2026

    77 °F

Climate (2021–Present)

Mount Pleasant Regional-Faison Field (5 miles)

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  • Average Low 2021–2026

    58.2 °F

  • Average 2021–2026

    66.3 °F

  • Average High 2021–2026

    75.3 °F
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