Fort Casey Weather Forecast

    • 41
    • 54

    Decreasing Clouds

    • 45
    • 56

    Mostly Cloudy

    • 45
    • 55

    Rain

    • 41
    • 52

    Rain

    • 40
    • 51

    Rain Likely

    • 37
    • 49

    Slight Chance Rain

Today 5 Feb Island County

Mostly sunny. Areas of fog in the morning. Widespread dense fog in the late morning and early afternoon. Highs in the 50s. Light wind.

Tonight 5 Feb Island County

Mostly clear. Lows in the upper 30s to mid 40s. Southeast wind to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fort Casey Temperature Statistics

February Temperature

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

  • Lowest 1 February, 2026

    45 °F

  • Average February

    49.3 °F

  • Highest 1 February, 2026

    54 °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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