Duarte Weather Forecast

    • 71
    • 99

    Hot

    • 72
    • 100

    Hot

    • 69
    • 97

    Hot

    • 66
    • 91

    Mostly Sunny

    • 63
    • 88

    Mostly Sunny

    • 63
    • 87

    Mostly Sunny

Today 8 Sep Los Angeles County San Gabriel Valley

Mostly cloudy in the morning then partly cloudy. A 20 percent chance of Showers. Highs 92 to 102.

Tonight 8 Sep Los Angeles County San Gabriel Valley

Partly cloudy. Lows in the lower 70s.

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Duarte Temperature Statistics

September Temperature

El Monte (5 miles)

  • Lowest 2 September, 2026

    64.4 °F

  • Average September

    79.5 °F

  • Highest 5 September, 2026

    91.4 °F

Climate (2021–2026)

El Monte (5 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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