Decision Point State Marine Park Weather Forecast

    • 11
    • 17

    Blustery

    • 12
    • 16

    Blustery

    • 18
    • 20

    Mostly Cloudy

    • 18
    • 26

    Mostly Cloudy

    • 17
    • 30

    Partly Sunny

    • 16
    • 31

    Partly Sunny

Today 17 Mar West Prince William Sound & Whittier

Mostly cloudy with isolated snow Showers. Highs in the upper teens to lower 30s. North wind 15 to 30 Mph with Gusts to 45 Mph.

Tonight 17 Mar West Prince William Sound & Whittier

Mostly cloudy. Isolated snow Showers in the evening. Lows 13 to 28. North wind 15 to 30 Mph with Gusts to 45 Mph.

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Decision Point State Marine Park Temperature Statistics

March Temperature

Portage, Portage Glacier (12.4 miles)

  • Lowest 2 March, 2026

    -11.9 °F

  • Average March

    10.3 °F

  • Highest 6 March, 2026

    37 °F

Climate (2021–Present)

Portage, Portage Glacier (12.4 miles)

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  • Average Low 2021–2026

    32.4 °F

  • Average 2021–2026

    38.3 °F

  • Average High 2021–2026

    43.8 °F
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