Ashley River - Cosgrove Bridge Weather Forecast

    • 76
    • 97

    Rain Showers Likely

    • 74
    • 92

    Rain Showers

    • 76
    • 91

    Thunderstorms Likely

    • 77
    • 93

    Slight Chance Thunderstorms

    • 79
    • 95

    Mostly Sunny

    • 79
    • 95

    Slight Chance Thunderstorms

Today 12 Jul Charleston

Mostly sunny. A chance of Showers and Thunderstorms in the afternoon. Highs in the mid 90s. Heat index Values up to 112. Southwest Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 12 Jul Charleston

Mostly cloudy with a chance of Thunderstorms. Showers Likely, mainly in the evening. Lows in the mid 70s. Heat index Values up to 106 early in the evening. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming west after midnight. Chance of rain 70 percent.

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Ashley River - Cosgrove Bridge Temperature Statistics

July Temperature

Charleston, Charleston Air Force Base (5 miles)

  • Lowest 2 July, 2026

    71.7 °F

  • Average July

    86 °F

  • Highest 5 July, 2026

    98.7 °F

Climate (2021–2026)

Charleston, Charleston Air Force Base (5 miles)

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  • Average Low 2021–2026

    58.2 °F

  • Average 2021–2026

    67.5 °F

  • Average High 2021–2026

    78 °F
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