Mendenhall Valley Weather Forecast

    • 57
    • 73

    Mostly Sunny

    • 60
    • 78

    Mostly Sunny

    • 61
    • 78

    Partly Sunny

    • 59
    • 76

    Partly Sunny

    • 57
    • 73

    Slight Chance Rain Showers

    • 56
    • 69

    Chance Rain Showers

Today 12 Aug City and Borough of Juneau

Mostly clear. Highs 68 to 74. West Winds around 10 Mph.

Tonight 12 Aug City and Borough of Juneau

Mostly clear. Lows in the mid 50s. Northwest Winds around 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mendenhall Valley Temperature Statistics

August Temperature

Juneau, Juneau International Airport (1.2 miles)

  • Lowest 1 August, 2026

    51.1 °F

  • Average August

    58.7 °F

  • Highest 1 August, 2026

    72 °F

Climate (2021–2026)

Juneau, Juneau International Airport (1.2 miles)

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  • Average Low 2021–2026

    37.1 °F

  • Average 2021–2026

    42.9 °F

  • Average High 2021–2026

    48.5 °F
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