Bay of Isles - South Arm Weather Forecast

    • 53
    • 60

    Mostly Sunny

    • 52
    • 61

    Partly Sunny

    • 50
    • 57

    Chance Rain Showers

    • 48
    • 53

    Rain Showers

    • 48
    • 52

    Rain Showers

    • 47
    • 53

    Rain Showers

Today 31 Jul West Prince William Sound & Whittier

Mostly sunny. Areas of fog in the morning. Highs in the 50s to mid 60s. Variable wind 10 Mph in the morning becoming light.

Tonight 31 Jul West Prince William Sound & Whittier

Mostly clear in the evening then becoming mostly cloudy. Lows in the mid 50s. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Bay of Isles - South Arm Temperature Statistics

July Temperature

Portage, Portage Glacier (47.8 miles)

  • Lowest 1 July, 2026

    34 °F

  • Average July

    53.2 °F

  • Highest 24 July, 2026

    71.1 °F

Climate (2021–2026)

Portage, Portage Glacier (47.8 miles)

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  • Average Low 2021–2026

    32.1 °F

  • Average 2021–2026

    38.1 °F

  • Average High 2021–2026

    43.7 °F
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