Charleston Weather Forecast

    • 78
    • 88

    Chance Thunderstorms

    • 75
    • 86

    Slight Chance Thunderstorms

    • 74
    • 86

    Chance Thunderstorms

    • 74
    • 84

    Chance Thunderstorms

    • 75
    • 85

    Chance Thunderstorms

    • 76
    • 86

    Chance Thunderstorms

Today 21 Aug Charleston

Mostly sunny. Highs in the lower 90s, except in the upper 80s near the coast. Southwest Winds 10 to 15 Mph.

Tonight 21 Aug Charleston

Partly cloudy with a chance of Showers and Thunderstorms in the Evening, then mostly cloudy with a slight chance of Showers and Thunderstorms after midnight. Lows in the mid 70s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

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Charleston Temperature Statistics

August Temperature

Charleston Executive Airport (6.8 miles)

  • Lowest 18 August, 2018

    73.4 °F
  • Average August

    82.9 °F
  • Highest 12 August, 2018

    91.4 °F

Climate (2010–Present)

Charleston Executive Airport (6.8 miles)

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  • Average Low 2010–Present

    59.2 °F
  • Average 2010–Present

    67.5 °F
  • Average High 2010–Present

    75.9 °F
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