Porter Ranch Weather Forecast

    • 79
    • 104

    Hot

    • 75
    • 101

    Hot

    • 70
    • 93

    Sunny

    • 63
    • 86

    Sunny

    • 62
    • 84

    Mostly Sunny

    • 60
    • 83

    Mostly Sunny

    • 58
    • 78

    Mostly Sunny

Today 9 Sep Western San Fernando Valley

Partly cloudy. Highs 103 to 111.

Tonight 9 Sep Western San Fernando Valley

Mostly clear. Lows in the upper 60s to mid 70s except the upper 70s to mid 80s in the Hills.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Porter Ranch Temperature Statistics

September Temperature

Van Nuys, Van Nuys Airport (5.6 miles)

  • Lowest 2 September, 2026

    60.7 °F

  • Average September

    74.1 °F

  • Highest 7 September, 2026

    91.9 °F

Climate (2021–2026)

Van Nuys, Van Nuys Airport (5.6 miles)

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  • Average Low 2021–2026

    56.6 °F

  • Average 2021–2026

    67.7 °F

  • Average High 2021–2026

    79.6 °F
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