Joseph Whidbey State Park Weather Forecast

    • 47
    • 56

    Slight Chance Thunderstorms

    • 48
    • 60

    Mostly Cloudy

    • 49
    • 61

    Partly Sunny

    • 49
    • 62

    Mostly Cloudy

    • 50
    • 63

    Partly Sunny

    • 50
    • 65

    Partly Sunny

Today 16 May Island County

Breezy. Partly sunny. A chance of Showers until late afternoon. A slight chance of Thunderstorms in the afternoon. Highs in the mid 50s to lower 60s. West wind 10 to 15 Mph increasing to 15 to 25 Mph in the afternoon.

Tonight 16 May Island County

Breezy. Partly cloudy in the evening then becoming mostly cloudy. Lows in the 40s. West wind 15 to 25 Mph with Gusts to 35 Mph decreasing to 10 to 15 Mph with Gusts to 25 Mph after midnight.

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Joseph Whidbey State Park Temperature Statistics

May Temperature

Whidbey Island Naval Air Station - Ault Field (3.7 miles)

  • Lowest 12 May, 2026

    45 °F

  • Average May

    53.6 °F

  • Highest 3 May, 2026

    66.9 °F

Climate (2021–Present)

Whidbey Island Naval Air Station - Ault Field (3.7 miles)

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  • Average Low 2021–2026

    44.5 °F

  • Average 2021–2026

    50.1 °F

  • Average High 2021–2026

    56.1 °F
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