Winnetka Weather Forecast

    • 59
    • 84

    Increasing Clouds

    • 59
    • 82

    Mostly Cloudy

    • 60
    • 83

    Mostly Sunny

    • 63
    • 85

    Sunny

    • 63
    • 88

    Mostly Sunny

    • 61
    • 86

    Partly Sunny

    • 61
    • 83

    Mostly Sunny

Today 15 Sep Western San Fernando Valley

Mostly cloudy in the morning then partly cloudy. Highs in the upper 70s to mid 80s.

Tonight 15 Sep Western San Fernando Valley

Partly cloudy in the evening then low Clouds and fog with drizzle. Lows in the mid 50s to around 60.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Winnetka Temperature Statistics

September Temperature

Van Nuys, Van Nuys Airport (4.3 miles)

  • Lowest 2 September, 2026

    60.7 °F

  • Average September

    78.4 °F

  • Highest 9 September, 2026

    107.7 °F

Climate (2021–2026)

Van Nuys, Van Nuys Airport (4.3 miles)

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

  • Average Low 2021–2026

    56.6 °F

  • Average 2021–2026

    67.7 °F

  • Average High 2021–2026

    79.5 °F
Get WillyWeather+ to remove ads