William Henry Bay Weather Forecast

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Today 17 Sep Haines Borough and Klukwan

Windy, rain. Rain may be heavy at Times in the morning. Highs in the upper 50s. East Winds 10 to 15 Mph increasing to southeast 20 to 30 Mph with Gusts to around 60 Mph.

Tonight 17 Sep Haines Borough and Klukwan

Rain. Lows 42 to 48. Southeast Winds 15 to 25 Mph. Gusts up to 45 Mph in the evening.

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William Henry Bay Temperature Statistics

September Temperature

Gustavus, Gustavus Airport (26.1 miles)

  • Lowest 14 September, 2025

    37 °F

  • Average September

    55.4 °F

  • Highest 3 September, 2025

    69.1 °F

Climate (2020–Present)

Gustavus, Gustavus Airport (26.1 miles)

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  • Average Low 2020–2025

    38.2 °F

  • Average 2020–2025

    43.6 °F

  • Average High 2020–2025

    48.6 °F
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