Charleston Harbor - Fort Sumter Weather Forecast

    • 39
    • 48

    Cloudy

    • 47
    • 57

    Rain Showers

    • 28
    • 54

    Slight Chance Rain Showers

    • 33
    • 42

    Mostly Sunny

    • 33
    • 48

    Partly Sunny

    • 28
    • 44

    Mostly Sunny

Today 24 Jan Charleston

Cloudy. Highs in the upper 40s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 24 Jan Charleston

Cloudy with a 50 percent chance of rain. Lows in the mid 30s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Charleston Harbor - Fort Sumter Temperature Statistics

January Temperature

Charleston Executive Airport (8.1 miles)

  • Lowest 16 January, 2026

    21.2 °F

  • Average January

    51.4 °F

  • Highest 9 January, 2026

    75.2 °F

Climate (2021–Present)

Charleston Executive Airport (8.1 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    58.9 °F

  • Average 2021–2026

    67.2 °F

  • Average High 2021–2026

    76 °F
Get WillyWeather+ to remove ads