Port McArthur Weather Forecast

    • 53
    • 62

    Mostly Cloudy

    • 53
    • 59

    Rain Showers

    • 52
    • 61

    Mostly Cloudy

    • 52
    • 59

    Rain Showers Likely

    • 52
    • 60

    Rain Showers Likely

    • 52
    • 60

    Chance Rain Showers

Today 16 Aug Western Kupreanof and Kuiu Island

Mostly cloudy. Highs 63 to 69. Light Winds.

Tonight 16 Aug Western Kupreanof and Kuiu Island

Mostly cloudy. Rain Showers late. Lows in the lower 50s. Light Winds becoming southeast around 10 Mph late.

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  • Temperature Real-Time

Port McArthur Temperature Statistics

August Temperature

Kake - Kake Airport (62.1 miles)

  • Lowest 4 August, 2026

    46 °F

  • Average August

    57.4 °F

  • Highest 13 August, 2026

    73 °F

Climate (2021–2026)

Kake - Kake Airport (62.1 miles)

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  • Average Low 2021–2026

    38.9 °F

  • Average 2021–2026

    43.8 °F

  • Average High 2021–2026

    48.7 °F
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