Fort Casey Weather Forecast

    • 51
    • 70

    Decreasing Clouds

    • 53
    • 72

    Partly Sunny

    • 54
    • 74

    Partly Sunny

    • 54
    • 74

    Partly Sunny

    • 53
    • 72

    Partly Sunny

    • 52
    • 70

    Mostly Cloudy

Today 20 Jul Island County

Mostly cloudy in the morning then becoming mostly sunny. Highs in the mid 60s to lower 70s. Light wind.

Tonight 20 Jul Island County

Partly cloudy. Lows in the lower to mid 50s. West wind to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Fort Casey Temperature Statistics

July Temperature

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

  • Lowest 4 July, 2025

    48 °F

  • Average July

    57.4 °F

  • Highest 16 July, 2025

    77 °F

Climate (2020–Present)

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

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    44.6 °F

  • Average 2020–2025

    50.2 °F

  • Average High 2020–2025

    56.2 °F
Get WillyWeather+ to remove ads