Bay of Isles - South Arm Weather Forecast

    • 16
    • 20

    Mostly Sunny

    • 19
    • 23

    Snow

    • 22
    • 27

    Snow

    • 16
    • 29

    Snow

    • 14
    • 23

    Snow

    • 24
    • 29

    Snow

Today 3 Jan West Prince William Sound & Whittier

Sunny. Highs 15 to 27. North wind 10 to 20 Mph with Gusts to 35 Mph.

Tonight 3 Jan West Prince William Sound & Whittier

Clear. Lows 5 to 22 above. North wind 10 to 20 Mph. Gusts to 35 Mph.

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Bay of Isles - South Arm Temperature Statistics

January Temperature

Portage, Portage Glacier (47.8 miles)

  • Lowest

  • Average January

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Climate (2021–Present)

Portage, Portage Glacier (47.8 miles)

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  • Average Low 2021–2026

    33 °F
  • Average 2021–2026

    38.8 °F
  • Average High 2021–2026

    44.4 °F
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