Grant Rea Park Weather Forecast

    • 48
    • 72

    Sunny

    • 50
    • 75

    Sunny

    • 55
    • 80

    Sunny

    • 56
    • 83

    Mostly Sunny

    • 54
    • 82

    Mostly Sunny

    • 54
    • 81

    Sunny

Today 6 Dec Los Angeles County San Gabriel Valley

Sunny. Highs in the upper 60s to mid 70s.

Tonight 6 Dec Los Angeles County San Gabriel Valley

Clear. Lows in the mid 40s to around 50.

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Grant Rea Park Temperature Statistics

December Temperature

El Monte (5.6 miles)

  • Lowest 2 December, 2025

    48.2 °F

  • Average December

    64.5 °F

  • Highest 1 December, 2025

    73.4 °F

Climate (2020–Present)

El Monte (5.6 miles)

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  • Average Low 2020–2025

    59.4 °F

  • Average 2020–2025

    70.2 °F

  • Average High 2020–2025

    76.9 °F
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