Barnes Park Weather Forecast

    • 68
    • 97

    Mostly Sunny

    • 67
    • 92

    Mostly Sunny

    • 65
    • 89

    Mostly Sunny

    • 63
    • 87

    Mostly Sunny

    • 62
    • 84

    Mostly Sunny

    • 63
    • 87

    Mostly Sunny

    • 66
    • 91

    Mostly Sunny

Today 11 Sep Los Angeles County San Gabriel Valley

Sunny. Highs 94 to 100.

Tonight 11 Sep Los Angeles County San Gabriel Valley

Mostly clear in the evening then partly cloudy. Lows in the mid 60s to around 70.

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Barnes Park Temperature Statistics

September Temperature

El Monte (1.9 miles)

  • Lowest 2 September, 2026

    64.4 °F

  • Average September

    82.2 °F

  • Highest 9 September, 2026

    107.6 °F

Climate (2021–2026)

El Monte (1.9 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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