Portland Island Weather Forecast

    • 19
    • 36

    Snow

    • 9
    • 21

    Blustery

    • 9
    • 13

    Partly Sunny

    • 10
    • 13

    Mostly Cloudy

    • 13
    • 17

    Mostly Cloudy

    • 14
    • 19

    Blustery

Today 7 Dec City and Borough of Juneau

Snow. Snow accumulation of 6 to 11 Inches. Highs in the lower 30s. East Winds 10 to 15 Mph.

Tonight 7 Dec City and Borough of Juneau

Colder. Snow likely. Snow accumulation of 2 to 4 Inches. Lows around 13. East Winds 10 to 15 Mph.

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Portland Island Temperature Statistics

December Temperature

Juneau, Juneau International Airport (5.6 miles)

  • Lowest 5 December, 2025

    37 °F

  • Average December

    40.6 °F

  • Highest 4 December, 2025

    43 °F

Climate (2020–Present)

Juneau, Juneau International Airport (5.6 miles)

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  • Average Low 2020–2025

    37.8 °F

  • Average 2020–2025

    43.4 °F

  • Average High 2020–2025

    49 °F
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