Perry Island (South Bay) Weather Forecast

    • 20
    • 22

    Mostly Sunny

    • 22
    • 25

    Mostly Sunny

    • 20
    • 26

    Partly Sunny

    • 16
    • 25

    Mostly Cloudy

    • 13
    • 22

    Mostly Cloudy

    • 11
    • 18

    Chance Snow

Today 22 Dec West Prince William Sound & Whittier

Sunny. Highs 11 to 21 above. Variable wind 10 Mph with Gusts to 25 Mph.

Tonight 22 Dec West Prince William Sound & Whittier

Mostly clear. Lows 10 to 20 above. Northwest wind 10 to 25 Mph. Gusts to 30 Mph increasing to 45 Mph after midnight.

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Perry Island (South Bay) Temperature Statistics

December Temperature

Portage, Portage Glacier (31.1 miles)

  • Lowest 11 December, 2025

    -6 °F

  • Average December

    14.1 °F

  • Highest 2 December, 2025

    41 °F

Climate (2021–Present)

Portage, Portage Glacier (31.1 miles)

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  • Average Low 2021–2025

    33.2 °F

  • Average 2021–2025

    39 °F

  • Average High 2021–2025

    44.6 °F
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