Granite Bay State Marine Park Weather Forecast

    • 45
    • 60

    Mostly Cloudy

    • 49
    • 64

    Mostly Sunny

    • 46
    • 60

    Mostly Sunny

    • 46
    • 55

    Mostly Cloudy

    • 45
    • 52

    Rain Showers Likely

    • 44
    • 50

    Rain Showers

    • 44
    • 52

    Rain Showers Likely

Today 2 Jun West Prince William Sound & Whittier

Mostly cloudy. Highs in the upper 50s. North wind 15 Mph.

Tonight 2 Jun West Prince William Sound & Whittier

Partly cloudy. Lows in the 40s. Variable wind 10 Mph.

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Granite Bay State Marine Park Temperature Statistics

June Temperature

Portage, Portage Glacier (25.5 miles)

  • Lowest

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  • Average June

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Climate (2021–Present)

Portage, Portage Glacier (25.5 miles)

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  • Average Low 2021–2026

    32.2 °F

  • Average 2021–2026

    38.1 °F

  • Average High 2021–2026

    43.7 °F
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