Green Island - Gibbon Anchorage Weather Forecast

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    Rain Showers

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    Rain Showers

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    Chance Rain Showers

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    Rain Showers Likely

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    Rain Showers

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    Rain Showers

Today 29 Sep West Prince William Sound & Whittier

Partly cloudy in the morning then becoming mostly sunny. Isolated rain Showers. Highs in the lower 50s. North wind 15 Mph. Gusts to 25 Mph in the morning.

Tonight 29 Sep West Prince William Sound & Whittier

Partly cloudy in the evening then becoming mostly cloudy. Scattered rain Showers. Lows in the lower 40s. Variable wind 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Green Island - Gibbon Anchorage Temperature Statistics

September Temperature

Portage, Portage Glacier (59 miles)

  • Lowest 24 September, 2026

    30 °F

  • Average September

    49.5 °F

  • Highest 11 September, 2026

    68 °F

Climate (2021–2026)

Portage, Portage Glacier (59 miles)

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  • Average Low 2021–2026

    32.2 °F

  • Average 2021–2026

    38.2 °F

  • Average High 2021–2026

    43.8 °F
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