San Juan Island - Friday Harbor Weather Forecast

    • 51
    • 60

    Partly Sunny

    • 48
    • 63

    Partly Sunny

    • 50
    • 61

    Rain Likely

    • 50
    • 60

    Rain

    • 48
    • 62

    Rain

    • 46
    • 59

    Rain Showers

    • 47
    • 58

    Rain Likely

Today 23 Sep San Juan County

Mostly sunny. Highs in the lower to mid 60s. North wind to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Juan Island - Friday Harbor Temperature Statistics

September Temperature

Friday Harbor Airport (1.9 miles)

  • Lowest 16 September, 2021

    44.1 °F
  • Average September

    57.2 °F
  • Highest 7 September, 2021

    75.9 °F

Climate (2010–Present)

Friday Harbor Airport (1.9 miles)

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  • Average Low 2010–Present

    44.1 °F
  • Average 2010–Present

    50.9 °F
  • Average High 2010–Present

    58.8 °F
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