San Juan Island - Cattle Point Lighthouse Weather Forecast

    • 45
    • 58

    Chance Rain

    • 46
    • 57

    Chance Rain

    • 45
    • 58

    Mostly Sunny

    • 46
    • 57

    Partly Sunny

    • 48
    • 55

    Chance Rain

    • 48
    • 56

    Mostly Cloudy

    • 48
    • 56

    Partly Sunny

Today 9 Oct San Juan County

Mostly sunny. Highs near 60.

Tonight 9 Oct San Juan County

Mostly cloudy with a chance of rain. Lows in the 40s. Southwest wind 10 to 15 Mph becoming west after midnight.

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  • Temperature Real-Time

San Juan Island - Cattle Point Lighthouse Temperature Statistics

October Temperature

Friday Harbor Airport (5.6 miles)

  • Lowest 7 October, 2026

    44.1 °F

  • Average October

    54.6 °F

  • Highest 2 October, 2026

    66 °F

Climate (2021–2026)

Friday Harbor Airport (5.6 miles)

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  • Average Low 2021–2026

    44.5 °F

  • Average 2021–2026

    52 °F

  • Average High 2021–2026

    59.7 °F
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