Whidbey Island - Greenbank Weather Forecast

    • 47
    • 56

    Increasing Clouds

    • 54
    • 59

    Rain

    • 50
    • 56

    Rain

    • 49
    • 58

    Partly Sunny

    • 51
    • 59

    Mostly Cloudy

    • 50
    • 59

    Partly Sunny

    • 50
    • 58

    Partly Sunny

Today 27 Sep Island County

Mostly sunny. Highs in the lower to mid 60s.

Tonight 27 Sep Island County

Partly cloudy. Lows in the mid 40s to lower 50s. Northwest wind 10 to 15 Mph in the evening becoming light.

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Whidbey Island - Greenbank Temperature Statistics

September Temperature

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

  • Lowest 18 September, 2026

    45 °F

  • Average September

    56.5 °F

  • Highest 7 September, 2026

    69.1 °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

    55.9 °F
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