Lopez Island - Spencer Spit Weather Forecast

    • 53
    • 70

    Gradual Clearing

    • 53
    • 70

    Mostly Sunny

    • 54
    • 71

    Mostly Sunny

    • 54
    • 71

    Partly Sunny

    • 54
    • 74

    Mostly Sunny

    • 55
    • 75

    Partly Sunny

    • 55
    • 73

    Partly Sunny

Today 9 Aug San Juan County

Mostly sunny. Highs in the mid 60s to lower 70s. Light wind.

Tonight 9 Aug San Juan County

Partly cloudy. Lows in the 50s. Light wind.

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  • Temperature Real-Time

Lopez Island - Spencer Spit Temperature Statistics

August Temperature

Friday Harbor Airport (7.5 miles)

  • Lowest 3 August, 2026

    48.9 °F

  • Average August

    62.5 °F

  • Highest 4 August, 2026

    78.1 °F

Climate (2021–2026)

Friday Harbor Airport (7.5 miles)

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  • Average Low 2021–2026

    44.5 °F

  • Average 2021–2026

    51.9 °F

  • Average High 2021–2026

    59.7 °F
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