Charleston Weather Forecast

    • 78
    • 86

    Slight Chance Thunderstorms

    • 76
    • 87

    Thunderstorms Likely

    • 74
    • 83

    Rain Showers Likely

    • 76
    • 85

    Chance Thunderstorms

    • 77
    • 86

    Chance Thunderstorms

    • 77
    • 87

    Chance Thunderstorms

Today 23 Aug Charleston

Mostly sunny with a slight chance of Showers and Thunderstorms. Highs around 90. South Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 20 percent.

Tonight 23 Aug Charleston

Mostly cloudy. Lows in the mid 70s. Southwest Winds 5 to 10 Mph.

Graph Plots Open in Graphs
  • Temperature Forecast NOAA

  • Temperature Real-Time

Charleston Temperature Statistics

August Temperature

Charleston Executive Airport (6.8 miles)

  • Lowest 6 August, 2019

    69.8 °F
  • Average August

    82.2 °F
  • Highest 9 August, 2019

    96.8 °F

Climate (2010–Present)

Charleston Executive Airport (6.8 miles)

Take a look at our website widgetsAvailable free! Find Out More
  • Average Low 2010–Present

    59.4 °F
  • Average 2010–Present

    67.7 °F
  • Average High 2010–Present

    76.2 °F
Get an account to remove ads