Northwest Island Weather Forecast

    • 49
    • 57

    Chance Rain

    • 49
    • 57

    Decreasing Clouds

    • 49
    • 58

    Mostly Cloudy

    • 50
    • 60

    Partly Sunny

    • 51
    • 58

    Partly Sunny

    • 51
    • 58

    Partly Sunny

    • 51
    • 58

    Mostly Cloudy

Today 29 Sep Lowlands of Western Skagit and Northwestern Snohomish Counties

Partly sunny. Highs in the 60s.

Tonight 29 Sep Lowlands of Western Skagit and Northwestern Snohomish Counties

Mostly cloudy. A slight chance of rain in the evening. Patchy fog after midnight. Lows in the mid 40s to lower 50s. South wind to 10 Mph in the evening becoming light.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Northwest Island Temperature Statistics

September Temperature

Whidbey Island Naval Air Station - Ault Field (4.3 miles)

  • Lowest 27 September, 2026

    41 °F

  • Average September

    56.1 °F

  • Highest 7 September, 2026

    69.1 °F

Climate (2021–2026)

Whidbey Island Naval Air Station - Ault Field (4.3 miles)

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

  • Average Low 2021–2026

    44.4 °F

  • Average 2021–2026

    49.9 °F

  • Average High 2021–2026

    55.9 °F
Get WillyWeather+ to remove ads