Orcas Island - Deer Harbor Weather Forecast

    • 57
    • 71

    Sunny

    • 55
    • 71

    Sunny

    • 55
    • 69

    Mostly Sunny

    • 54
    • 67

    Partly Sunny

    • 54
    • 68

    Partly Sunny

    • 55
    • 68

    Partly Sunny

Today 16 Sep San Juan County

Sunny. Highs in the mid 60s to lower 70s. North wind to 10 Mph.

Tonight 16 Sep San Juan County

Clear. Lows in the 50s. North wind to 10 Mph increasing to 10 to 15 Mph after midnight.

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Orcas Island - Deer Harbor Temperature Statistics

September Temperature

Friday Harbor Airport (6.8 miles)

  • Lowest 3 September, 2026

    48.9 °F

  • Average September

    58.4 °F

  • Highest 6 September, 2026

    73 °F

Climate (2021–2026)

Friday Harbor Airport (6.8 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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