Charleston Harbor - Fort Sumter Weather Forecast

    • 61
    • 70

    Partly Sunny

    • 63
    • 71

    Mostly Cloudy

    • 64
    • 71

    Chance Rain Showers

    • 63
    • 74

    Chance Rain Showers

    • 61
    • 72

    Partly Sunny

    • 64
    • 71

    Mostly Cloudy

Today 28 Mar Charleston

Mostly sunny. Highs in the upper 70s, except in the lower 70s near the coast. Southeast Winds 5 to 10 Mph, becoming south 10 to 15 Mph in the afternoon.

Tonight 28 Mar Charleston

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the upper 50s. South Winds 5 to 10 Mph.

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Charleston Harbor - Fort Sumter Temperature Statistics

March Temperature

Charleston Executive Airport (8.1 miles)

  • Lowest 3 March, 2025

    33.8 °F

  • Average March

    58.7 °F

  • Highest 11 March, 2025

    77 °F

Climate (2020–Present)

Charleston Executive Airport (8.1 miles)

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  • Average Low 2020–2025

    59 °F

  • Average 2020–2025

    67.3 °F

  • Average High 2020–2025

    76 °F
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