San Juan Island - Friday Harbor Weather Forecast

    • 42
    • 58

    Becoming Sunny

    • 38
    • 65

    Mostly Sunny

    • 44
    • 66

    Mostly Sunny

    • 46
    • 66

    Mostly Sunny

    • 49
    • 66

    Mostly Sunny

    • 48
    • 60

    Partly Sunny

    • 48
    • 57

    Chance Rain Showers

Today 23 Apr San Juan County

Clear. Lows in the lower to mid 40s. North wind around 10 Mph becoming northeast after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Juan Island - Friday Harbor Temperature Statistics

April Temperature

Friday Harbor, Friday Harbor Airport (1.2 miles)

  • Lowest 2 April, 2018

    33.1 °F
  • Average April

    47.1 °F
  • Highest 10 April, 2018

    60.1 °F

Climate (2010–Present)

Friday Harbor, Friday Harbor Airport (1.2 miles)

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  • Average Low 2010–Present

    43.3 °F
  • Average 2010–Present

    50.1 °F
  • Average High 2010–Present

    57.8 °F
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