South Esther Island State Marine Park Weather Forecast

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    • 51

    Rain

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    • 45

    Rain

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    • 45

    Rain Showers

    • 39
    • 49

    Chance Rain Showers

    • 40
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    Chance Rain Showers

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    Rain Showers Likely

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    Rain Showers Likely

Today 25 May West Prince William Sound & Whittier

Mostly sunny. Highs in the upper 40s. Southwest wind 10 to 20 Mph.

Tonight 25 May West Prince William Sound & Whittier

Rain. Lows in the upper 30s. Southeast wind 10 to 20 Mph. Gusts to 25 Mph increasing to 35 Mph after midnight.

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  • Temperature Real-Time

South Esther Island State Marine Park Temperature Statistics

May Temperature

Portage, Portage Glacier (25.5 miles)

  • Lowest 9 May, 2026

    32 °F

  • Average May

    40.8 °F

  • Highest 14 May, 2026

    52 °F

Climate (2021–Present)

Portage, Portage Glacier (25.5 miles)

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  • Average Low 2021–2026

    32.2 °F

  • Average 2021–2026

    38.1 °F

  • Average High 2021–2026

    43.7 °F
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