San Juan Island - Eagle Cove Weather Forecast

    • 43
    • 53

    Increasing Clouds

    • 47
    • 58

    Mostly Cloudy

    • 48
    • 61

    Mostly Cloudy

    • 48
    • 62

    Partly Sunny

    • 47
    • 59

    Mostly Cloudy

    • 45
    • 58

    Partly Sunny

Today 17 Apr San Juan County

Partly sunny in the morning then becoming sunny. Highs in the lower to mid 50s. Light wind.

Tonight 17 Apr San Juan County

Mostly cloudy. Lows in the lower to mid 40s. Light wind.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Juan Island - Eagle Cove Temperature Statistics

April Temperature

Friday Harbor Airport (3.7 miles)

  • Lowest 7 April, 2026

    37 °F

  • Average April

    48.8 °F

  • Highest 5 April, 2026

    62.1 °F

Climate (2021–Present)

Friday Harbor Airport (3.7 miles)

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  • Average Low 2021–2026

    44.5 °F

  • Average 2021–2026

    51.9 °F

  • Average High 2021–2026

    59.7 °F
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