Perry Island Weather Forecast

    • 20
    • 22

    Sunny

    • 20
    • 20

    Mostly Sunny

    • 23
    • 24

    Mostly Sunny

    • 24
    • 28

    Partly Sunny

    • 18
    • 26

    Mostly Cloudy

    • 14
    • 23

    Mostly Cloudy

    • 15
    • 18

    Chance Snow

Today 21 Dec West Prince William Sound & Whittier

Sunny. Highs 12 to 22. North wind 15 to 30 Mph with Gusts to 40 Mph.

Tonight 21 Dec West Prince William Sound & Whittier

Clear. Lows 10 to 20 above. Northwest wind 10 to 20 Mph with Gusts to 30 Mph.

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Perry Island Temperature Statistics

December Temperature

Portage, Portage Glacier (30.4 miles)

  • Lowest 11 December, 2025

    -6 °F

  • Average December

    14.6 °F

  • Highest 2 December, 2025

    41 °F

Climate (2021–Present)

Portage, Portage Glacier (30.4 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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