Ashley River - Interstate 526 Bridge Weather Forecast

    • 67
    • 89

    Chance Thunderstorms

    • 66
    • 80

    Mostly Cloudy

    • 68
    • 79

    Chance Thunderstorms

    • 67
    • 81

    Slight Chance Thunderstorms

    • 66
    • 84

    Partly Sunny

    • 67
    • 84

    Partly Sunny

    • 66
    • 82

    Partly Sunny

Today 7 Sep Charleston

Partly sunny with a chance of Showers and Thunderstorms. Highs in the upper 80s. East Winds around 5 Mph. Chance of rain 50 percent.

Tonight 7 Sep Charleston

Mostly cloudy. A chance of Showers and Thunderstorms, mainly this evening. Lows in the upper 60s. Northeast Winds around 5 Mph, becoming north 10 to 15 Mph with Gusts up to 25 Mph after midnight. Chance of rain 50 percent.

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Ashley River - Interstate 526 Bridge Temperature Statistics

September Temperature

Charleston, Charleston Air Force Base (4.3 miles)

  • Lowest 1 September, 2025

    63 °F

  • Average September

    74.6 °F

  • Highest 5 September, 2025

    90 °F

Climate (2020–Present)

Charleston, Charleston Air Force Base (4.3 miles)

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  • Average Low 2020–2025

    58.3 °F

  • Average 2020–2025

    67.4 °F

  • Average High 2020–2025

    77.6 °F
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