Sullivan's Island Weather Forecast

    • 56
    • 73

    Sunny

    • 52
    • 71

    Sunny

    • 55
    • 69

    Mostly Sunny

    • 56
    • 69

    Breezy

    • 54
    • 71

    Breezy

    • 52
    • 70

    Mostly Sunny

    • 55
    • 71

    Partly Sunny

Today 21 Oct Charleston

Mostly sunny. Highs in the mid 70s.

Tonight 21 Oct Charleston

Clear. Lows in the upper 40s, except in the lower 50s near the coast. North Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Sullivan's Island Temperature Statistics

October Temperature

Mount Pleasant Regional-Faison Field (9.3 miles)

  • Lowest 18 October, 2026

    46.4 °F

  • Average October

    71.3 °F

  • Highest 2 October, 2026

    89.6 °F

Climate (2021–2026)

Mount Pleasant Regional-Faison Field (9.3 miles)

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

  • Average Low 2021–2026

    58.4 °F

  • Average 2021–2026

    66.5 °F

  • Average High 2021–2026

    75.6 °F
Get WillyWeather+ to remove ads