Costa Weather Forecast

    • 47
    • 70

    Becoming Sunny

    • 47
    • 71

    Mostly Sunny

    • 48
    • 72

    Mostly Sunny

    • 49
    • 73

    Mostly Sunny

    • 50
    • 73

    Mostly Sunny

    • 56
    • 79

    Partly Sunny

Today 24 Sep Boone

Partly sunny with a 30 percent chance of Showers. Highs in the upper 70s.

Tonight 24 Sep Boone

Mostly clear. Areas of fog after midnight. Lows in the mid 40s. Northeast Winds around 5 Mph this Evening, becoming light and variable.

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Costa Temperature Statistics

September Temperature

Charleston, Yeager Airport (16.2 miles)

  • Lowest 15 September, 2026

    53.7 °F

  • Average September

    76.5 °F

  • Highest 3 September, 2026

    96.7 °F

Climate (2021–2026)

Charleston, Yeager Airport (16.2 miles)

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  • Average Low 2021–2026

    46.8 °F

  • Average 2021–2026

    57.2 °F

  • Average High 2021–2026

    68.5 °F
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