South Dewees Island Weather Forecast

    • 37
    • 51

    Partly Sunny

    • 46
    • 59

    Mostly Cloudy

    • 46
    • 61

    Partly Sunny

    • 41
    • 62

    Mostly Cloudy

    • 30
    • 52

    Rain/Freezing Rain Likely

    • 27
    • 41

    Chance Freezing Rain

Today 20 Jan Charleston

Sunny. Highs in the lower 50s. Northwest Winds around 5 Mph.

Tonight 20 Jan Charleston

Mostly clear. Lows around 30. Northwest Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

South Dewees Island Temperature Statistics

January Temperature

Mount Pleasant Regional-Faison Field (5 miles)

  • Lowest 16 January, 2026

    24.8 °F

  • Average January

    52.1 °F

  • Highest 9 January, 2026

    77 °F

Climate (2021–Present)

Mount Pleasant Regional-Faison Field (5 miles)

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

  • Average Low 2021–2026

    58.3 °F

  • Average 2021–2026

    66.4 °F

  • Average High 2021–2026

    75.4 °F
Get WillyWeather+ to remove ads