Clark Island State Park Weather Forecast

    • 54
    • 59

    Rain

    • 52
    • 58

    Rain

    • 51
    • 57

    Partly Sunny

    • 52
    • 58

    Mostly Cloudy

    • 52
    • 58

    Partly Sunny

    • 51
    • 58

    Partly Sunny

Today 28 Sep San Juan County

Mostly sunny. Highs in the upper 50s to mid 60s. South wind to 10 Mph increasing to 10 to 15 Mph in the afternoon.

Tonight 28 Sep San Juan County

Breezy. Cloudy in the Evening, then a chance of rain after midnight. Cloudy with rain likely in the morning. Rainfall Amounts a tenth to a quarter of an inch possible. Lows in the upper 40s to mid 50s. South wind to 10 Mph with Gusts to 20 Mph increasing to southeast 15 to 25 Mph with Gusts to 35 Mph after midnight.

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Clark Island State Park Temperature Statistics

September Temperature

Eastsound, Orcas Island Airport (6.2 miles)

  • Lowest 24 September, 2026

    46.4 °F

  • Average September

    58.7 °F

  • Highest 2 September, 2026

    69.8 °F

Climate (2021–2026)

Eastsound, Orcas Island Airport (6.2 miles)

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  • Average Low 2021–2026

    46.2 °F

  • Average 2021–2026

    52 °F

  • Average High 2021–2026

    57.8 °F
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