Chatsworth Reservoir and Nature Preserve Weather Forecast

    • 68
    • 84

    Chance Rain Showers

    • 68
    • 95

    Mostly Sunny

    • 70
    • 103

    Hot

    • 72
    • 103

    Hot

    • 71
    • 102

    Hot

    • 66
    • 96

    Mostly Sunny

Today 6 Sep Western San Fernando Valley

Showers likely in the Morning, then Showers likely with a slight chance of Thunderstorms in the afternoon. Highs in the lower to mid 80s. Chance of precipitation 70 percent.

Tonight 6 Sep Western San Fernando Valley

Mostly cloudy with a 20 percent chance of Showers in the Evening, becoming mostly clear after midnight. Lows in the mid to upper 60s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Chatsworth Reservoir and Nature Preserve Temperature Statistics

September Temperature

Van Nuys, Van Nuys Airport (8.1 miles)

  • Lowest 2 September, 2026

    60.7 °F

  • Average September

    73.2 °F

  • Highest 1 September, 2026

    87.7 °F

Climate (2021–2026)

Van Nuys, Van Nuys Airport (8.1 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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