Granite Bay State Marine Park Weather Forecast

    • 47
    • 52

    Rain Showers

    • 47
    • 51

    Rain Showers

    • 45
    • 56

    Mostly Cloudy

    • 45
    • 58

    Mostly Cloudy

    • 45
    • 57

    Rain Showers

    • 44
    • 55

    Rain Showers

Today 9 Jun West Prince William Sound & Whittier

Partly sunny with isolated Showers. Highs in the mid 50s. Light Winds.

Tonight 9 Jun West Prince William Sound & Whittier

Mostly cloudy. Isolated Showers in the Evening, then a slight chance of rain after midnight. Lows in the upper 40s. Light Winds.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Granite Bay State Marine Park Temperature Statistics

June Temperature

Portage, Portage Glacier (25.5 miles)

  • Lowest 2 June, 2026

    37 °F

  • Average June

    52.2 °F

  • Highest 4 June, 2026

    75.9 °F

Climate (2021–Present)

Portage, Portage Glacier (25.5 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    32.2 °F

  • Average 2021–2026

    38.1 °F

  • Average High 2021–2026

    43.7 °F
Get WillyWeather+ to remove ads