Clark Island State Park Weather Forecast

    • 53
    • 61

    Rain

    • 53
    • 62

    Mostly Sunny

    • 56
    • 67

    Mostly Sunny

    • 52
    • 63

    Chance Rain

    • 51
    • 60

    Slight Chance Rain

    • 52
    • 61

    Mostly Sunny

Today 14 Sep San Juan County

Areas of fog in the morning. Rain likely through the day. Rainfall Amounts less than a tenth of an inch likely. Highs in the mid 60s to lower 70s. South wind 10 to 15 Mph becoming southwest in the afternoon.

Tonight 14 Sep San Juan County

Mostly cloudy with a chance of rain. Lows in the upper 40s to mid 50s. Southwest wind to 10 Mph.

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  • Temperature Real-Time

Clark Island State Park Temperature Statistics

September Temperature

Eastsound, Orcas Island Airport (6.2 miles)

  • Lowest 11 September, 2025

    51.8 °F

  • Average September

    62.4 °F

  • Highest 2 September, 2025

    73.4 °F

Climate (2020–Present)

Eastsound, Orcas Island Airport (6.2 miles)

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  • Average Low 2020–2025

    46.1 °F

  • Average 2020–2025

    51.8 °F

  • Average High 2020–2025

    57.6 °F
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