Montecito Heights Weather Forecast

    • 64
    • 80

    Decreasing Clouds

    • 67
    • 91

    Mostly Sunny

    • 67
    • 88

    Mostly Sunny

    • 68
    • 88

    Partly Sunny

    • 66
    • 89

    Partly Sunny

    • 63
    • 83

    Mostly Sunny

Today 22 Sep Los Angeles County San Gabriel Valley

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

Tonight 22 Sep Los Angeles County San Gabriel Valley

Mostly clear. Lows in the upper 50s and 60s.

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Montecito Heights Temperature Statistics

September Temperature

Los Angeles / USC Campus Downtown (6.2 miles)

  • Lowest 2 September, 2026

    61.6 °F

  • Average September

    77.9 °F

  • Highest 9 September, 2026

    105.7 °F

Climate (2021–2026)

Los Angeles / USC Campus Downtown (6.2 miles)

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  • Average Low 2021–2026

    57 °F

  • Average 2021–2026

    65.5 °F

  • Average High 2021–2026

    74.9 °F
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