Coupeville Weather Forecast

    • 52
    • 63

    Increasing Clouds

    • 55
    • 76

    Mostly Sunny

    • 53
    • 67

    Partly Sunny

    • 53
    • 65

    Partly Sunny

    • 53
    • 66

    Partly Sunny

    • 54
    • 66

    Chance Rain

Today 15 Sep Island County

Sunny. Highs in the 60s. Light wind becoming northwest to 10 Mph in the afternoon.

Tonight 15 Sep Island County

Clear in the evening then becoming partly cloudy. Lows in the lower to mid 50s. Northwest wind to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Coupeville Temperature Statistics

September Temperature

Whidbey Island Naval Air Station - Ault Field (8.7 miles)

  • Lowest 10 September, 2025

    50 °F

  • Average September

    57 °F

  • Highest 13 September, 2025

    66.9 °F

Climate (2020–Present)

Whidbey Island Naval Air Station - Ault Field (8.7 miles)

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

  • Average Low 2020–2025

    44.6 °F

  • Average 2020–2025

    50.1 °F

  • Average High 2020–2025

    56.1 °F
Get WillyWeather+ to remove ads