Charleston Harbor - Fort Sumter Weather Forecast

    • 54
    • 54

    Rain

    • 34
    • 61

    Rain Likely

    • 29
    • 41

    Partly Sunny

    • 27
    • 38

    Snow Likely

    • 27
    • 34

    Slight Chance Rain

    • 37
    • 43

    Chance Rain

Today 18 Jan Charleston

Rain. Highs in the upper 50s. Northwest Winds around 5 Mph, becoming south in the afternoon. Chance of rain near 100 percent.

Tonight 18 Jan Charleston

Rain. Lows in the lower 50s. Southwest Winds 10 to 15 Mph. Chance of rain 90 percent.

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Charleston Harbor - Fort Sumter Temperature Statistics

January Temperature

Charleston Executive Airport (8.1 miles)

  • Lowest 8 January, 2025

    26.6 °F

  • Average January

    43.6 °F

  • Highest 6 January, 2025

    64.4 °F

Climate (2020–Present)

Charleston Executive Airport (8.1 miles)

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  • Average Low 2020–2025

    59.1 °F

  • Average 2020–2025

    67.4 °F

  • Average High 2020–2025

    76 °F
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