Joseph Whidbey State Park Weather Forecast

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    • 58

    Rain

    • 49
    • 58

    Mostly Cloudy

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    • 59

    Slight Chance Rain

    • 49
    • 60

    Mostly Cloudy

    • 50
    • 60

    Partly Sunny

    • 50
    • 61

    Mostly Cloudy

Today 29 Sep Island County

Breezy. Rain likely in the Morning, then rain at Times in the late morning and early afternoon. A chance of rain late in the afternoon. Rainfall Amounts a quarter to a half inch possible. Highs in the mid 50s to lower 60s. South wind 15 to 25 Mph becoming west 10 to 20 Mph in the afternoon. Gusts to 35 Mph.

Tonight 29 Sep Island County

Mostly cloudy with a chance of rain in the Evening, then partly cloudy after midnight. Lows in the mid 40s to lower 50s. West wind 10 to 20 Mph with Gusts to 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Joseph Whidbey State Park Temperature Statistics

September Temperature

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

  • Lowest 18 September, 2026

    45 °F

  • Average September

    56.3 °F

  • Highest 7 September, 2026

    69.1 °F

Climate (2021–2026)

Whidbey Island Naval Air Station - Ault Field (3.7 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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