Composite Island Weather Forecast

    • 51
    • 57

    Decreasing Clouds

    • 53
    • 64

    Chance Rain

    • 52
    • 68

    Partly Sunny

    • 51
    • 67

    Partly Sunny

    • 51
    • 65

    Mostly Cloudy

    • 50
    • 64

    Mostly Cloudy

Today 21 Aug Glacier Bay

Cloudy. Near excursion Inlet, patchy fog early in the morning. Areas of fog early in the morning. Patchy fog in the morning. Highs in the lower 60s. Light Winds.

Tonight 21 Aug Glacier Bay

Mostly cloudy. Patchy fog late. Lows in the lower 50s. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Composite Island Temperature Statistics

August Temperature

Haines - Haines Airport (44.7 miles)

  • Lowest 14 August, 2025

    47.6 °F

  • Average August

    58.9 °F

  • Highest 12 August, 2025

    74.6 °F

Climate (2020–Present)

Haines - Haines Airport (44.7 miles)

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  • Average Low 2020–2025

    38.1 °F

  • Average 2020–2025

    43.4 °F

  • Average High 2020–2025

    48.7 °F
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