Lopez Island - Fisherman Bay Weather Forecast

    • 58
    • 83

    Mostly Sunny

    • 58
    • 85

    Mostly Sunny

    • 58
    • 84

    Mostly Sunny

    • 56
    • 83

    Mostly Sunny

    • 55
    • 74

    Mostly Sunny

Today 4 Aug San Juan County

Sunny. Highs in the 70s to lower 80s. North wind to 10 Mph.

Tonight 4 Aug San Juan County

Mostly clear. Patchy smoke after midnight. Lows in the mid 50s to lower 60s. Light wind becoming north to 10 Mph after midnight.

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Lopez Island - Fisherman Bay Temperature Statistics

August Temperature

Friday Harbor Airport (4.3 miles)

  • Lowest 1 August, 2026

    55.9 °F

  • Average August

    62.4 °F

  • Highest 1 August, 2026

    73 °F

Climate (2021–2026)

Friday Harbor Airport (4.3 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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