Decatur Island - Davis Bay Weather Forecast

    • 41
    • 46

    Increasing Clouds

    • 44
    • 48

    Rain

    • 43
    • 50

    Rain

    • 39
    • 48

    Chance Rain

    • 38
    • 45

    Partly Sunny

    • 39
    • 47

    Partly Sunny

    • 42
    • 49

    Mostly Cloudy

Today 24 Feb San Juan County

Sunny. Highs in the 40s. North wind to 10 Mph.

Tonight 24 Feb San Juan County

Mostly clear. Lows in the mid 30s to lower 40s. Light wind becoming southwest to 10 Mph with Gusts to 20 Mph after midnight.

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Decatur Island - Davis Bay Temperature Statistics

February Temperature

Friday Harbor Airport (9.9 miles)

  • Lowest 19 February, 2026

    26.1 °F

  • Average February

    43.2 °F

  • Highest 4 February, 2026

    54 °F

Climate (2021–Present)

Friday Harbor Airport (9.9 miles)

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  • Average Low 2021–2026

    44.4 °F

  • Average 2021–2026

    51.9 °F

  • Average High 2021–2026

    59.7 °F
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