Grand Avenue Park Weather Forecast

    • 65
    • 91

    Patchy Fog

    • 64
    • 89

    Gradual Clearing

    • 62
    • 88

    Mostly Sunny

    • 60
    • 85

    Mostly Sunny

    • 61
    • 86

    Mostly Sunny

    • 64
    • 91

    Sunny

    • 67
    • 95

    Sunny

Today 12 Sep Los Angeles County San Gabriel Valley

Low Clouds and fog in the morning then sunny. Highs in the upper 80s to mid 90s.

Tonight 12 Sep Los Angeles County San Gabriel Valley

Mostly clear in the evening then low Clouds and fog. Lows in the mid to upper 60s.

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Grand Avenue Park Temperature Statistics

September Temperature

El Monte (5.6 miles)

  • Lowest 2 September, 2026

    64.4 °F

  • Average September

    83.3 °F

  • Highest 9 September, 2026

    107.6 °F

Climate (2021–2026)

El Monte (5.6 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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