Willow Island Weather Forecast

    • 37
    • 49

    Rain/Snow

    • 35
    • 42

    Rain/Snow

    • 29
    • 41

    Rain/Snow

    • 24
    • 35

    Chance Snow Showers

    • 23
    • 34

    Slight Chance Rain/Snow

    • 26
    • 34

    Slight Chance Rain/Snow

Today 31 Jan San Juan County

Breezy. Rain at Times in the Morning, then rain likely late in the morning. Rain at Times in the afternoon. Rainfall Amounts a tenth to a quarter of an inch possible. Highs in the mid 40s to lower 50s. Southeast wind 15 to 25 Mph.

Tonight 31 Jan San Juan County

Breezy. Rain at Times in the Evening, then rain and snow Showers after midnight. Snow level near 500 feet after midnight. No snow accumulation. Lows in the 30s. Southwest wind 15 to 25 Mph becoming west after midnight. Gusts to 35 Mph.

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Willow Island Temperature Statistics

January Temperature

Friday Harbor Airport (9.3 miles)

  • Lowest 20 January, 2025

    31.7 °F

  • Average January

    43.4 °F

  • Highest 16 January, 2025

    58.6 °F

Climate (2020–Present)

Friday Harbor Airport (9.3 miles)

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  • Average Low 2020–2025

    44.2 °F

  • Average 2020–2025

    51.4 °F

  • Average High 2020–2025

    59.1 °F
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