Lopez Island - Johns Point Weather Forecast

    • 52
    • 62

    Increasing Clouds

    • 53
    • 69

    Mostly Sunny

    • 52
    • 65

    Partly Sunny

    • 52
    • 63

    Mostly Sunny

    • 52
    • 64

    Partly Sunny

    • 53
    • 62

    Chance Rain

Today 15 Sep San Juan County

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

Tonight 15 Sep San Juan County

Mostly clear. Lows in the 50s. Light wind.

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Lopez Island - Johns Point Temperature Statistics

September Temperature

Friday Harbor Airport (8.1 miles)

  • Lowest 10 September, 2025

    48 °F
  • Average September

    58 °F
  • Highest 3 September, 2025

    75.9 °F

Climate (2020–Present)

Friday Harbor Airport (8.1 miles)

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  • Average Low 2020–2025

    44.3 °F
  • Average 2020–2025

    51.7 °F
  • Average High 2020–2025

    59.5 °F
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