Charleston Harbor - Fort Johnson Weather Forecast

    • 63
    • 72

    Becoming Sunny

    • 63
    • 74

    Mostly Sunny

    • 62
    • 74

    Mostly Sunny

    • 58
    • 70

    Sunny

    • 61
    • 69

    Partly Sunny

    • 66
    • 72

    Mostly Sunny

Today 13 Oct Charleston

Partly sunny. Highs in the lower 70s. North Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 13 Oct Charleston

Mostly clear. Lows in the upper 50s. Northwest Winds 5 to 10 Mph.

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Charleston Harbor - Fort Johnson Temperature Statistics

October Temperature

Charleston Executive Airport (6.8 miles)

  • Lowest 11 October, 2025

    59 °F

  • Average October

    71.2 °F

  • Highest 6 October, 2025

    84.2 °F

Climate (2020–Present)

Charleston Executive Airport (6.8 miles)

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  • Average Low 2020–2025

    59.1 °F

  • Average 2020–2025

    67.3 °F

  • Average High 2020–2025

    76.1 °F
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