San Juan Island - Friday Harbor Weather Forecast

    • 42
    • 46

    Chance Rain Showers

    • 44
    • 46

    Rain

    • 41
    • 50

    Rain

    • 38
    • 45

    Areas Fog

    • 37
    • 43

    Areas Fog

    • 37
    • 43

    Areas Fog

    • 36
    • 45

    Mostly Cloudy

Today 18 Jan San Juan County

Cloudy. A slight chance of Showers in the Morning, then a chance of Showers in the afternoon. Highs in the 40s. Northwest wind to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Juan Island - Friday Harbor Temperature Statistics

January Temperature

Friday Harbor Airport (1.9 miles)

  • Lowest 1 January, 2022

    26.1 °F
  • Average January

    41.2 °F
  • Highest 12 January, 2022

    54 °F

Climate (2010–Present)

Friday Harbor Airport (1.9 miles)

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  • Average Low 2010–Present

    43.7 °F
  • Average 2010–Present

    50.3 °F
  • Average High 2010–Present

    57.8 °F
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