Johns Island Weather Forecast

    • 52
    • 64

    Rain Showers Likely

    • 48
    • 67

    Partly Sunny

    • 48
    • 64

    Partly Sunny

    • 52
    • 68

    Mostly Sunny

    • 53
    • 70

    Partly Sunny

    • 55
    • 69

    Partly Sunny

Today 31 Jan Charleston

Mostly sunny. Highs around 70, except in the lower 60s near the coast. Southwest Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 31 Jan Charleston

Mostly cloudy. Patchy fog. Showers after midnight. Lows in the lower 50s. Southwest Winds 15 to 20 Mph, becoming west after midnight. Chance of rain 90 percent.

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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

    42.6 °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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