San Juan Island - Kanaka Bay Weather Forecast

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    Rain Showers

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    Rain

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    Chance Rain

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    Chance Rain

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    Rain Likely

    • 43
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    Chance Rain

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    Chance Rain

Today 6 Jan San Juan County

Windy. Rain at Times in the late morning and early Afternoon, then cloudy with a chance of rain late in the afternoon. Rainfall Amounts a quarter to a half inch possible. Highs in the mid to upper 40s. South wind 15 to 30 Mph with Gusts to 40 Mph.

Tonight 6 Jan San Juan County

Windy. Mostly cloudy. A chance of rain in the Evening, then a slight chance of rain after midnight. Lows in the mid 30s to lower 40s. Southwest wind 10 to 20 Mph increasing to west 20 to 30 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Juan Island - Kanaka Bay Temperature Statistics

January Temperature

Friday Harbor Airport (3.1 miles)

  • Lowest 1 January, 2026

    36 °F

  • Average January

    44.2 °F

  • Highest 3 January, 2026

    51.1 °F

Climate (2021–Present)

Friday Harbor Airport (3.1 miles)

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  • Average Low 2021–2026

    44.4 °F

  • Average 2021–2026

    51.8 °F

  • Average High 2021–2026

    59.6 °F
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