Seal Island Weather Forecast

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    Chance Rain Showers

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    Rain Showers

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    Sunny

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    Chance Rain

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    Rain Likely

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    Rain Likely

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    Chance Rain

Today 20 Oct West Prince William Sound & Whittier

Mostly cloudy. Lows in the upper 30s. Highs in the mid 40s.

Tonight 20 Oct West Prince William Sound & Whittier

Mostly cloudy. Scattered snow Showers and isolated rain Showers in the Evening, then a chance of snow and isolated rain Showers after midnight. Lows in the mid 30s. Southwest wind 10 to 20 Mph with Gusts to 45 Mph shifting to the north after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Seal Island Temperature Statistics

October Temperature

Portage, Portage Glacier (54.1 miles)

  • Lowest 18 October, 2026

    28.9 °F

  • Average October

    41.1 °F

  • Highest 15 October, 2026

    50 °F

Climate (2021–2026)

Portage, Portage Glacier (54.1 miles)

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  • Average Low 2021–2026

    32.3 °F

  • Average 2021–2026

    38.3 °F

  • Average High 2021–2026

    43.9 °F
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