James Island State Park Weather Forecast

    • 35
    • 45

    Partly Sunny

    • 37
    • 45

    Partly Sunny

    • 39
    • 45

    Rain

    • 36
    • 49

    Rain/Snow

    • 34
    • 43

    Rain/Snow

    • 30
    • 41

    Snow Likely

    • 27
    • 38

    Chance Rain/Snow

Today 28 Jan San Juan County

Mostly sunny. Patchy fog in the morning. Highs in the 40s. Light wind.

Tonight 28 Jan San Juan County

Mostly clear. Patchy fog after midnight. Lows in the lower to mid 30s. Light wind.

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  • Temperature Real-Time

James Island State Park Temperature Statistics

January Temperature

Friday Harbor Airport (11.2 miles)

  • Lowest 20 January, 2025

    31.7 °F

  • Average January

    43.8 °F

  • Highest 16 January, 2025

    58.6 °F

Climate (2020–Present)

Friday Harbor Airport (11.2 miles)

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  • Average Low 2020–2025

    44.2 °F

  • Average 2020–2025

    51.4 °F

  • Average High 2020–2025

    59.1 °F
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