Decatur Island - Davis Bay Weather Forecast

    • 51
    • 61

    Partly Sunny

    • 53
    • 59

    Chance Rain

    • 53
    • 64

    Mostly Cloudy

    • 52
    • 65

    Partly Sunny

    • 52
    • 68

    Partly Sunny

    • 53
    • 69

    Partly Sunny

Today 1 Jul San Juan County

Mostly cloudy until late afternoon then becoming mostly sunny. Highs in the 60s. Light wind becoming south to 10 Mph in the afternoon.

Tonight 1 Jul San Juan County

Partly cloudy. Lows in the upper 40s to mid 50s. Southwest wind to 10 Mph. Gusts to 20 Mph.

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Decatur Island - Davis Bay Temperature Statistics

July Temperature

Friday Harbor Airport (9.9 miles)

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  • Average July

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Climate (2021–2026)

Friday Harbor Airport (9.9 miles)

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  • Average Low 2021–2026

    44.5 °F

  • Average 2021–2026

    51.9 °F

  • Average High 2021–2026

    59.7 °F
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