Orcas Island - Deer Harbor Weather Forecast

    • 54
    • 69

    Increasing Clouds

    • 56
    • 67

    Mostly Cloudy

    • 55
    • 70

    Mostly Cloudy

    • 55
    • 69

    Mostly Sunny

    • 55
    • 67

    Partly Sunny

    • 55
    • 68

    Partly Sunny

Today 10 Sep San Juan County

Mostly sunny. Highs in the 60s. West wind to 10 Mph in the morning becoming light.

Tonight 10 Sep San Juan County

Partly cloudy. Lows in the 50s. Southwest wind 10 to 15 Mph.

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  • Temperature Real-Time

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

    59.6 °F
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