South El Monte Weather Forecast

    • 63
    • 83

    Becoming Sunny

    • 64
    • 87

    Mostly Sunny

    • 65
    • 90

    Sunny

    • 67
    • 96

    Sunny

    • 69
    • 97

    Slight Chance Thunderstorms

    • 68
    • 94

    Slight Chance Thunderstorms

Today 13 Sep Los Angeles County San Gabriel Valley

Low Clouds and fog in the morning then sunny. Highs in the upper 70s to mid 80s.

Tonight 13 Sep Los Angeles County San Gabriel Valley

Clear in the evening then Areas of low Clouds and fog. Lows in the lower to mid 60s.

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South El Monte Temperature Statistics

September Temperature

El Monte (1.9 miles)

  • Lowest 9 September, 2025

    66.2 °F

  • Average September

    82.7 °F

  • Highest 2 September, 2025

    100.4 °F

Climate (2020–Present)

El Monte (1.9 miles)

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  • Average Low 2020–2025

    59.4 °F

  • Average 2020–2025

    70.3 °F

  • Average High 2020–2025

    77.1 °F
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