Port McArthur Weather Forecast

    • 20
    • 28

    Mostly Cloudy

    • 20
    • 23

    Mostly Cloudy

    • 20
    • 24

    Blustery

    • 14
    • 24

    Blustery

    • 16
    • 18

    Blustery

    • 20
    • 23

    Chance Snow

Today 18 Dec Western Kupreanof and Kuiu Island

Mostly cloudy. Near port Alexander, slight chance of snow Showers in the morning. Highs in the lower 20s. North Winds 10 to 15 Mph.

Tonight 18 Dec Western Kupreanof and Kuiu Island

Partly cloudy. Lows around 14. North Winds 10 to 15 Mph.

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Port McArthur Temperature Statistics

December Temperature

Kake - Kake Airport (62.1 miles)

  • Lowest 12 December, 2025

    10 °F

  • Average December

    30.1 °F

  • Highest 1 December, 2025

    46.9 °F

Climate (2020–Present)

Kake - Kake Airport (62.1 miles)

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  • Average Low 2020–2025

    39.1 °F

  • Average 2020–2025

    44 °F

  • Average High 2020–2025

    48.9 °F
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