Coon Island Weather Forecast

    • 52
    • 67

    Mostly Sunny

    • 53
    • 66

    Partly Sunny

    • 53
    • 64

    Mostly Cloudy

    • 53
    • 65

    Partly Sunny

    • 53
    • 65

    Mostly Sunny

    • 53
    • 65

    Partly Sunny

Today 12 Sep Ketchikan Gateway Borough

Clear. Highs in the upper 60s. Northwest Winds around 10 Mph.

Tonight 12 Sep Ketchikan Gateway Borough

Mostly clear. Lows around 50. Northwest Winds around 10 Mph.

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Coon Island Temperature Statistics

September Temperature

Ketchikan, Ketchikan International Airport (10.6 miles)

  • Lowest 5 September, 2026

    51.1 °F

  • Average September

    58.6 °F

  • Highest 3 September, 2026

    73 °F

Climate (2021–2026)

Ketchikan, Ketchikan International Airport (10.6 miles)

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  • Average Low 2021–2026

    41.8 °F

  • Average 2021–2026

    46.9 °F

  • Average High 2021–2026

    51.9 °F
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