Newcastle Park Weather Forecast

    • 61
    • 84

    Gradual Clearing

    • 63
    • 87

    Partly Sunny

    • 63
    • 89

    Mostly Sunny

    • 64
    • 91

    Partly Sunny

    • 65
    • 93

    Mostly Sunny

    • 65
    • 93

    Mostly Sunny

Today 14 Aug Los Angeles County San Gabriel Valley

Cloudy in the morning then partly cloudy. Highs in the 80s.

Tonight 14 Aug Los Angeles County San Gabriel Valley

Mostly clear in the evening then partly cloudy. Lows in the upper 50s to mid 60s.

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Newcastle Park Temperature Statistics

August Temperature

El Monte (3.7 miles)

  • Lowest 4 August, 2026

    69.8 °F

  • Average August

    85.2 °F

  • Highest 1 August, 2026

    96.8 °F

Climate (2021–2026)

El Monte (3.7 miles)

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  • Average Low 2021–2026

    59.8 °F

  • Average 2021–2026

    70.6 °F

  • Average High 2021–2026

    77.2 °F
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