Composite Island Weather Forecast

    • 49
    • 57

    Rain

    • 49
    • 61

    Mostly Cloudy

    • 49
    • 64

    Partly Sunny

    • 48
    • 66

    Mostly Sunny

    • 48
    • 61

    Partly Sunny

    • 49
    • 60

    Mostly Cloudy

Today 8 Sep Glacier Bay

Rain. Highs in the upper 50s. Southeast Winds 10 to 20 Mph.

Tonight 8 Sep Glacier Bay

Rain. Rain may be heavy at Times in the evening. Lows around 50. South Winds 15 to 25 Mph becoming southwest around 10 Mph late.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Composite Island Temperature Statistics

September Temperature

Haines - Haines Airport (44.7 miles)

  • Lowest 5 September, 2026

    41 °F

  • Average September

    55.9 °F

  • Highest 2 September, 2026

    70 °F

Climate (2021–2026)

Haines - Haines Airport (44.7 miles)

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  • Average Low 2021–2026

    37.9 °F

  • Average 2021–2026

    43.2 °F

  • Average High 2021–2026

    48.5 °F
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