Coupeville Weather Forecast

    • 40
    • 50

    Rain Likely

    • 42
    • 51

    Mostly Cloudy

    • 41
    • 51

    Partly Sunny

    • 43
    • 52

    Cloudy

    • 43
    • 53

    Mostly Cloudy

    • 44
    • 54

    Mostly Cloudy

Today 30 Oct Island County

Mostly cloudy. A chance of rain Showers in the Morning, then rain Showers in the afternoon. Rainfall Amounts less than a tenth of an inch likely. Highs in the upper 40s to mid 50s. Light wind becoming southeast to 10 Mph in the afternoon.

Tonight 30 Oct Island County

Partly cloudy. Lows in the upper 30s to mid 40s. Southeast wind around 10 Mph.

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  • Temperature Real-Time

Coupeville Temperature Statistics

October Temperature

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

  • Lowest 11 October, 2026

    37.9 °F

  • Average October

    50.5 °F

  • Highest 5 October, 2026

    64.9 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    44.3 °F

  • Average 2021–2026

    49.9 °F

  • Average High 2021–2026

    55.9 °F
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