Fort Casey Weather Forecast

    • 40
    • 50

    Rain

    • 40
    • 52

    Rain

    • 36
    • 49

    Chance Rain

    • 35
    • 46

    Partly Sunny

    • 36
    • 49

    Mostly Sunny

    • 39
    • 50

    Mostly Cloudy

Today 25 Feb Island County

Partly sunny. A chance of rain through the day. Highs near 50. Southwest wind around 10 Mph becoming south in the afternoon.

Tonight 25 Feb Island County

Mostly cloudy with a chance of rain in the Evening, then mostly cloudy with rain likely after midnight. Rainfall Amounts less than a tenth of an inch likely. Lows in the upper 30s to mid 40s. South wind 10 to 15 Mph. Gusts to 25 Mph after midnight.

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Fort Casey Temperature Statistics

February Temperature

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

  • Lowest 20 February, 2026

    23 °F

  • Average February

    43 °F

  • Highest 3 February, 2026

    55.9 °F

Climate (2021–Present)

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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