Johns Island Weather Forecast

    • 44
    • 72

    Mostly Sunny

    • 53
    • 63

    Partly Sunny

    • 50
    • 67

    Rain Showers Likely

    • 46
    • 65

    Partly Sunny

    • 47
    • 63

    Mostly Sunny

    • 50
    • 67

    Mostly Sunny

Today 29 Jan Charleston

Mostly sunny. Highs around 70, except in the mid 60s near the coast. West Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 29 Jan Charleston

Mostly clear. Lows in the lower 40s, except in the mid 40s near the coast. West Winds 5 to 10 Mph, becoming northwest after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Johns Island Temperature Statistics

January Temperature

Charleston Executive Airport (1.2 miles)

  • Lowest 24 January, 2025

    23 °F

  • Average January

    42.3 °F

  • Highest 6 January, 2025

    64.4 °F

Climate (2020–Present)

Charleston Executive Airport (1.2 miles)

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  • Average Low 2020–2025

    59.1 °F

  • Average 2020–2025

    67.3 °F

  • Average High 2020–2025

    76 °F
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