San Juan Co Park Weather Forecast

    • 42
    • 61

    Becoming Sunny

    • 45
    • 60

    Rain Showers

    • 44
    • 62

    Rain Likely

    • 44
    • 58

    Rain

    • 44
    • 60

    Rain

    • 43
    • 60

    Rain Showers Likely

    • 44
    • 60

    Rain Showers Likely

Today 15 Oct San Juan County

Sunny. Highs in the mid 50s to lower 60s. Light wind.

Tonight 15 Oct San Juan County

Mostly clear. Lows in the 40s. Light wind.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Juan Co Park Temperature Statistics

October Temperature

Friday Harbor Airport (6.2 miles)

  • Lowest 5 October, 2025

    44.1 °F

  • Average October

    53 °F

  • Highest 5 October, 2025

    64.9 °F

Climate (2020–Present)

Friday Harbor Airport (6.2 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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