Culross Island Weather Forecast

    • 31
    • 41

    Chance Snow

    • 31
    • 35

    Mostly Cloudy

    • 28
    • 34

    Partly Sunny

    • 24
    • 32

    Mostly Sunny

    • 22
    • 30

    Partly Sunny

    • 17
    • 28

    Partly Sunny

    • 18
    • 23

    Partly Sunny

Today 18 Jan West Prince William Sound & Whittier

Mostly cloudy with a chance of rain. Highs in the lower 40s. Northeast wind 10 to 20 Mph.

Tonight 18 Jan West Prince William Sound & Whittier

Mostly cloudy with a chance of rain. Areas of fog. Lows in the mid 30s. North wind 15 Mph.

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Culross Island Temperature Statistics

January Temperature

Portage, Portage Glacier (23 miles)

  • Lowest 8 January, 2026

    -4 °F

  • Average January

    15.4 °F

  • Highest 10 January, 2026

    39.9 °F

Climate (2021–Present)

Portage, Portage Glacier (23 miles)

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  • Average Low 2021–2026

    32.8 °F

  • Average 2021–2026

    38.6 °F

  • Average High 2021–2026

    44.2 °F
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