Cat Island Weather Forecast

    • 36
    • 42

    Rain

    • 28
    • 39

    Rain/Snow

    • 24
    • 31

    Mostly Cloudy

    • 24
    • 28

    Mostly Cloudy

    • 22
    • 29

    Mostly Cloudy

    • 19
    • 26

    Mostly Cloudy

    • 21
    • 26

    Chance Snow

Today 17 Dec Ketchikan Gateway Borough

Mostly cloudy. Chance of rain and snow Showers in the morning. Rain and snow Showers in the afternoon. Snow accumulation up to 1 inch. Highs in the upper 30s. Northwest Winds around 10 Mph early in the morning becoming Light, then becoming southeast around 10 Mph in the afternoon.

Tonight 17 Dec Ketchikan Gateway Borough

Rain and snow Showers. Snow accumulation up to 4 Inches. Lows in the lower 30s. Southeast Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

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Cat Island Temperature Statistics

December Temperature

Metlakatla, Metlakatla Seaplane Base (14.3 miles)

  • Lowest 11 December, 2025

    25 °F

  • Average December

    40.1 °F

  • Highest 14 December, 2025

    50 °F

Climate (2021–Present)

Metlakatla, Metlakatla Seaplane Base (14.3 miles)

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  • Average Low 2021–2025

    43.6 °F

  • Average 2021–2025

    47.1 °F

  • Average High 2021–2025

    50.7 °F
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