Monterey Park Weather Forecast

    • 68
    • 85

    Rain Showers

    • 64
    • 82

    Chance Rain Showers

    • 65
    • 85

    Mostly Sunny

    • 66
    • 88

    Mostly Sunny

    • 68
    • 90

    Mostly Sunny

    • 65
    • 89

    Mostly Sunny

Today 18 Sep Los Angeles County San Gabriel Valley

Showers likely. Slight a chance of Thunderstorms. Highs in the lower to mid 80s. Chance of precipitation 70 percent.

Tonight 18 Sep Los Angeles County San Gabriel Valley

Mostly cloudy with a chance of Showers and a slight chance of Thunderstorms. Lows in the mid 60s to around 70. Chance of precipitation 50 percent.

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Monterey Park Temperature Statistics

September Temperature

El Monte (5 miles)

  • Lowest 9 September, 2025

    66.2 °F

  • Average September

    81.2 °F

  • Highest 2 September, 2025

    100.4 °F

Climate (2020–Present)

El Monte (5 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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