San De Fuca Weather Forecast

    • 53
    • 67

    Gradual Clearing

    • 55
    • 69

    Partly Sunny

    • 54
    • 70

    Partly Sunny

    • 53
    • 66

    Mostly Cloudy

    • 53
    • 63

    Mostly Cloudy

    • 52
    • 62

    Partly Sunny

Today 23 Aug Island County

Cloudy with a slight chance of Thunderstorms in the Morning, then partly sunny in the afternoon. Highs in the upper 60s to mid 70s. South wind around 10 Mph.

Tonight 23 Aug Island County

Partly cloudy. Lows in the lower to mid 50s. West wind 10 to 15 Mph becoming northwest after midnight.

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San De Fuca Temperature Statistics

August Temperature

Whidbey Island Naval Air Station - Ault Field (8.7 miles)

  • Lowest 3 August, 2026

    48 °F

  • Average August

    56.6 °F

  • Highest 5 August, 2026

    69.1 °F

Climate (2021–2026)

Whidbey Island Naval Air Station - Ault Field (8.7 miles)

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  • Average Low 2021–2026

    44.4 °F

  • Average 2021–2026

    50 °F

  • Average High 2021–2026

    56 °F
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