Fort Casey Weather Forecast

    • 53
    • 72

    Becoming Sunny

    • 55
    • 75

    Mostly Sunny

    • 54
    • 77

    Partly Sunny

    • 54
    • 76

    Mostly Sunny

    • 55
    • 76

    Mostly Sunny

    • 57
    • 80

    Mostly Sunny

Today 17 Jun Island County

Mostly sunny. Highs in the upper 60s to mid 70s. Light wind becoming northwest to 10 Mph in the afternoon.

Tonight 17 Jun Island County

Mostly clear. Lows in the lower to mid 50s. Northwest wind to 10 Mph in the evening becoming light.

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  • Temperature Real-Time

Fort Casey Temperature Statistics

June Temperature

Whidbey Island Naval Air Station - Ault Field (13 miles)

  • Lowest 1 June, 2026

    42.1 °F

  • Average June

    55.6 °F

  • Highest 14 June, 2026

    73.9 °F

Climate (2021–2026)

Whidbey Island Naval Air Station - Ault Field (13 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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