Granite Bay State Marine Park Weather Forecast

    • 6
    • 16

    Mostly Sunny

    • 9
    • 18

    Partly Sunny

    • 13
    • 21

    Partly Sunny

    • 15
    • 27

    Chance Snow

    • 21
    • 27

    Chance Snow

Today 28 Feb West Prince William Sound & Whittier

Sunny. Highs 14 to 22. North wind 15 to 30 Mph with Gusts to 40 Mph.

Tonight 28 Feb West Prince William Sound & Whittier

Clear. Lows 6 to 18 above. North wind 15 to 30 Mph.

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Granite Bay State Marine Park Temperature Statistics

February Temperature

Portage, Portage Glacier (25.5 miles)

  • Lowest 26 February, 2026

    -2 °F

  • Average February

    26.5 °F

  • Highest 3 February, 2026

    45 °F

Climate (2021–Present)

Portage, Portage Glacier (25.5 miles)

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  • Average Low 2021–2026

    32.6 °F

  • Average 2021–2026

    38.4 °F

  • Average High 2021–2026

    44 °F
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