The Arboretum Weather Forecast

    • 48
    • 75

    Decreasing Clouds

    • 50
    • 79

    Mostly Sunny

    • 55
    • 85

    Partly Sunny

    • 52
    • 82

    Mostly Sunny

    • 51
    • 77

    Mostly Sunny

    • 51
    • 74

    Partly Sunny

Today 16 Apr Los Angeles County San Gabriel Valley

Mostly cloudy except for patchy low Clouds and fog in the morning. Highs in the lower to mid 70s.

Tonight 16 Apr Los Angeles County San Gabriel Valley

Mostly clear. Lows in the upper 40s to mid 50s.

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The Arboretum Temperature Statistics

April Temperature

El Monte (4.3 miles)

  • Lowest 13 April, 2026

    55.4 °F

  • Average April

    71.6 °F

  • Highest 4 April, 2026

    89.6 °F

Climate (2021–Present)

El Monte (4.3 miles)

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  • Average Low 2021–2026

    59.7 °F

  • Average 2021–2026

    70.6 °F

  • Average High 2021–2026

    77.3 °F
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