Granite Bay State Marine Park Weather Forecast

    • 47
    • 54

    Rain Showers

    • 47
    • 54

    Chance Rain

    • 47
    • 54

    Rain Showers

    • 48
    • 58

    Rain Showers Likely

    • 51
    • 63

    Slight Chance Rain Showers

    • 49
    • 62

    Chance Rain Showers

Today 2 Jul West Prince William Sound & Whittier

Mostly cloudy. Highs in the lower 50s. Light Winds becoming variable 10 Mph in the afternoon.

Tonight 2 Jul West Prince William Sound & Whittier

Mostly cloudy with scattered Showers. Lows in the upper 40s. Variable wind 10 Mph in the evening becoming light.

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Granite Bay State Marine Park Temperature Statistics

July Temperature

Portage, Portage Glacier (25.5 miles)

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  • Average July

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Climate (2021–2026)

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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