Decatur Island - Davis Bay Weather Forecast

    • 47
    • 49

    Rain

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    • 52

    Rain

    • 40
    • 50

    Rain

    • 39
    • 45

    Rain/Snow

    • 40
    • 46

    Rain/Snow

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    • 47

    Rain

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    Rain/Snow

Today 6 Mar San Juan County

Rain. Rainfall Amounts a quarter to a half inch possible. Highs near 50. Southeast wind 10 to 15 Mph.

Tonight 6 Mar San Juan County

Rain at Times in the Evening, then cloudy with a chance of rain after midnight. Rainfall Amounts a tenth to a quarter of an inch possible. Lows in the 40s. South wind around 10 Mph.

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Decatur Island - Davis Bay Temperature Statistics

March Temperature

Friday Harbor Airport (9.9 miles)

  • Lowest 2 March, 2026

    34 °F

  • Average March

    45 °F

  • Highest 2 March, 2026

    55 °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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