Whidbey Island - Greenbank Weather Forecast

    • 53
    • 62

    Increasing Clouds

    • 53
    • 61

    Mostly Cloudy

    • 53
    • 62

    Mostly Sunny

    • 54
    • 64

    Partly Sunny

    • 53
    • 65

    Mostly Cloudy

    • 52
    • 63

    Slight Chance Rain

    • 52
    • 65

    Partly Sunny

Today 6 Sep Island County

Mostly sunny. Highs in the mid 60s to lower 70s. Northwest wind to 10 Mph.

Tonight 6 Sep Island County

Mostly clear until early morning then becoming mostly cloudy. Lows in the lower to mid 50s. West wind to 10 Mph becoming southwest with Gusts to 20 Mph after midnight.

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Whidbey Island - Greenbank Temperature Statistics

September Temperature

Whidbey Island Naval Air Station - Ault Field (17.4 miles)

  • Lowest 4 September, 2026

    48 °F

  • Average September

    58.6 °F

  • Highest 2 September, 2026

    68 °F

Climate (2021–2026)

Whidbey Island Naval Air Station - Ault Field (17.4 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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