Orcas Island - Deer Harbor Weather Forecast

    • 61
    • 78

    Partly Sunny

    • 60
    • 79

    Mostly Sunny

    • 59
    • 78

    Mostly Sunny

    • 59
    • 77

    Partly Sunny

    • 58
    • 75

    Partly Sunny

    • 58
    • 74

    Partly Sunny

    • 57
    • 74

    Slight Chance Rain Showers

Today 23 Aug San Juan County

Sunny. Highs in the mid 70s to lower 80s. Light wind becoming north around 10 Mph in the afternoon.

Tonight 23 Aug San Juan County

Mostly clear. Lows in the mid 50s to lower 60s. Northwest wind to 10 Mph in the evening becoming light.

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Orcas Island - Deer Harbor Temperature Statistics

August Temperature

Friday Harbor Airport (6.8 miles)

  • Lowest 21 August, 2025

    46.9 °F

  • Average August

    63 °F

  • Highest 12 August, 2025

    90.6 °F

Climate (2020–Present)

Friday Harbor Airport (6.8 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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