The Arboretum Weather Forecast

    • 58
    • 85

    Mostly Sunny

    • 64
    • 89

    Sunny

    • 67
    • 96

    Mostly Sunny

    • 70
    • 101

    Hot

    • 70
    • 101

    Hot

    • 72
    • 102

    Hot

    • 66
    • 101

    Hot

Today 14 Mar Los Angeles County San Gabriel Valley

Sunny. Highs in the lower to mid 80s.

Tonight 14 Mar Los Angeles County San Gabriel Valley

Mostly clear. Lows in the mid 50s to around 60.

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The Arboretum Temperature Statistics

March Temperature

El Monte (4.3 miles)

  • Lowest 11 March, 2026

    53.6 °F

  • Average March

    72 °F

  • Highest 12 March, 2026

    93.2 °F

Climate (2021–Present)

El Monte (4.3 miles)

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  • Average Low 2021–2026

    59.6 °F

  • Average 2021–2026

    70.4 °F

  • Average High 2021–2026

    77.1 °F
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