Lopez Island - Fisherman Bay Weather Forecast

    • 53
    • 71

    Slight Chance Rain

    • 52
    • 70

    Increasing Clouds

    • 52
    • 68

    Mostly Cloudy

    • 52
    • 70

    Mostly Sunny

    • 52
    • 69

    Mostly Sunny

    • 52
    • 70

    Mostly Sunny

    • 52
    • 71

    Mostly Sunny

Today 12 Sep San Juan County

Mostly cloudy. Highs in the mid 60s to lower 70s. Light wind becoming northwest to 10 Mph in the afternoon.

Tonight 12 Sep San Juan County

Mostly cloudy. A slight chance of rain late in the night. Lows in the lower to mid 50s. Southwest wind around 10 Mph becoming south after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lopez Island - Fisherman Bay Temperature Statistics

September Temperature

Friday Harbor Airport (4.3 miles)

  • Lowest 3 September, 2026

    48.9 °F

  • Average September

    58.8 °F

  • Highest 6 September, 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

    59.6 °F
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