Grant Rea Park Weather Forecast

    • 54
    • 72

    Increasing Clouds

    • 57
    • 77

    Mostly Sunny

    • 58
    • 85

    Sunny

    • 60
    • 84

    Mostly Sunny

    • 60
    • 82

    Partly Sunny

    • 60
    • 83

    Mostly Sunny

Today 29 May Los Angeles County San Gabriel Valley

Partly cloudy. Highs in the lower to mid 70s.

Tonight 29 May Los Angeles County San Gabriel Valley

Clear in the evening then low Clouds and fog. Lows in the upper 40s to mid 50s. Southwest Winds around 15 Mph in the evening.

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Grant Rea Park Temperature Statistics

May Temperature

El Monte (5.6 miles)

  • Lowest 4 May, 2026

    59 °F

  • Average May

    70.5 °F

  • Highest 20 May, 2026

    89.6 °F

Climate (2021–Present)

El Monte (5.6 miles)

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  • Average Low 2021–2026

    59.8 °F

  • Average 2021–2026

    70.6 °F

  • Average High 2021–2026

    77.3 °F
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