Grant Rea Park Weather Forecast

    • 47
    • 84

    Mostly Sunny

    • 46
    • 84

    Mostly Sunny

    • 49
    • 84

    Mostly Sunny

    • 54
    • 84

    Mostly Sunny

    • 54
    • 80

    Mostly Sunny

    • 53
    • 78

    Patchy Fog

Today 14 Jan Los Angeles County San Gabriel Valley

Sunny. Highs in the lower to mid 80s.

Tonight 14 Jan Los Angeles County San Gabriel Valley

Mostly clear. Lows in the mid 40s to mid 50s.

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Grant Rea Park Temperature Statistics

January Temperature

El Monte (5.6 miles)

  • Lowest 10 January, 2026

    39.2 °F

  • Average January

    62.3 °F

  • Highest 11 January, 2026

    77 °F

Climate (2021–Present)

El Monte (5.6 miles)

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  • Average Low 2021–2026

    59.4 °F

  • Average 2021–2026

    70.2 °F

  • Average High 2021–2026

    76.9 °F
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