Bay of Isles - South Arm Weather Forecast

    • 44
    • 51

    Mostly Cloudy

    • 41
    • 57

    Chance Rain Showers

    • 42
    • 51

    Chance Rain Showers

    • 43
    • 56

    Mostly Cloudy

    • 43
    • 56

    Sunny

    • 43
    • 54

    Mostly Sunny

    • 43
    • 52

    Chance Rain

Today 15 Jun West Prince William Sound & Whittier

Mostly cloudy. Highs in the lower 50s. Light Winds.

Tonight 15 Jun West Prince William Sound & Whittier

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

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Bay of Isles - South Arm Temperature Statistics

June Temperature

Portage, Portage Glacier (47.8 miles)

  • Lowest 11 June, 2025

    36 °F

  • Average June

    47.9 °F

  • Highest 11 June, 2025

    66.9 °F

Climate (2020–Present)

Portage, Portage Glacier (47.8 miles)

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  • Average Low 2020–2025

    33.3 °F

  • Average 2020–2025

    39.1 °F

  • Average High 2020–2025

    44.6 °F
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