Pearl Island Weather Forecast

    • 29
    • 43

    Mostly Sunny

    • 27
    • 42

    Mostly Sunny

    • 31
    • 41

    Mostly Cloudy

    • 39
    • 43

    Mostly Cloudy

    • 41
    • 47

    Chance Rain Showers

    • 42
    • 47

    Chance Rain Showers

Today 23 Jan San Juan County

Sunny. Highs in the lower to mid 40s. North wind to 10 Mph becoming northeast around 10 Mph in the afternoon.

Tonight 23 Jan San Juan County

Mostly clear. Lows in the mid 20s to lower 30s. North wind to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Pearl Island Temperature Statistics

January Temperature

Friday Harbor Airport (8.7 miles)

  • Lowest 8 January, 2026

    33.1 °F

  • Average January

    44.2 °F

  • Highest 13 January, 2026

    53.1 °F

Climate (2021–Present)

Friday Harbor Airport (8.7 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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