Bay of Isles - South Arm Weather Forecast

    • 21
    • 28

    Sunny

    • 24
    • 28

    Partly Sunny

    • 23
    • 29

    Chance Snow

    • 21
    • 29

    Chance Snow

    • 21
    • 31

    Mostly Sunny

    • 21
    • 31

    Mostly Sunny

Today 27 Mar West Prince William Sound & Whittier

Sunny. Highs in the lower 30s. North wind 10 to 20 Mph with Gusts to 35 Mph.

Tonight 27 Mar West Prince William Sound & Whittier

Clear. Lows in the 20s. North wind 15 Mph with Gusts to 25 Mph.

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Bay of Isles - South Arm Temperature Statistics

March Temperature

Portage, Portage Glacier (47.8 miles)

  • Lowest 2 March, 2026

    -11.9 °F

  • Average March

    12.6 °F

  • Highest 6 March, 2026

    37 °F

Climate (2021–Present)

Portage, Portage Glacier (47.8 miles)

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  • Average Low 2021–2026

    32.3 °F

  • Average 2021–2026

    38.2 °F

  • Average High 2021–2026

    43.8 °F
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