The Arboretum Weather Forecast

    • 57
    • 87

    Mostly Sunny

    • 57
    • 86

    Mostly Sunny

    • 57
    • 86

    Mostly Sunny

    • 59
    • 85

    Mostly Sunny

    • 64
    • 86

    Chance Rain Showers

    • 66
    • 89

    Chance Rain Showers

Today 1 Sep Los Angeles County San Gabriel Valley

Sunny. Highs in the mid 80s. Southwest Winds around 15 Mph in the afternoon.

Tonight 1 Sep Los Angeles County San Gabriel Valley

Mostly clear. Lows around 60.

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The Arboretum Temperature Statistics

September Temperature

El Monte (4.3 miles)

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Climate (2021–2026)

El Monte (4.3 miles)

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  • Average Low 2021–2026

    59.9 °F

  • Average 2021–2026

    70.7 °F

  • Average High 2021–2026

    77.3 °F
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