Sunset Reservoir Weather Forecast

    • 60
    • 85

    Decreasing Clouds

    • 61
    • 81

    Mostly Sunny

    • 64
    • 89

    Mostly Sunny

    • 66
    • 88

    Mostly Sunny

    • 68
    • 92

    Sunny

    • 71
    • 94

    Mostly Sunny

    • 71
    • 96

    Sunny

Today 27 Sep Los Angeles County San Gabriel Valley

Sunny. Highs in the mid 90s.

Tonight 27 Sep Los Angeles County San Gabriel Valley

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

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  • Temperature Real-Time

Sunset Reservoir Temperature Statistics

September Temperature

El Monte (8.7 miles)

  • Lowest 2 September, 2026

    64.4 °F

  • Average September

    80.3 °F

  • Highest 9 September, 2026

    107.6 °F

Climate (2021–2026)

El Monte (8.7 miles)

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  • Average Low 2021–2026

    60 °F

  • Average 2021–2026

    70.7 °F

  • Average High 2021–2026

    77.3 °F
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