Sunset Reservoir Weather Forecast

    • 57
    • 80

    Mostly Sunny

    • 59
    • 86

    Becoming Sunny

    • 61
    • 92

    Sunny

    • 56
    • 82

    Mostly Sunny

    • 55
    • 78

    Mostly Sunny

    • 55
    • 78

    Mostly Sunny

    • 56
    • 80

    Mostly Sunny

Today 9 May Los Angeles County San Gabriel Valley

Low Clouds and fog in the morning then sunny. Highs in the upper 70s to mid 80s.

Tonight 9 May Los Angeles County San Gabriel Valley

Mostly clear. Lows in the mid 50s to around 60.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sunset Reservoir Temperature Statistics

May Temperature

El Monte (8.7 miles)

  • Lowest 4 May, 2026

    59 °F

  • Average May

    67.8 °F

  • Highest 1 May, 2026

    78.8 °F

Climate (2021–Present)

El Monte (8.7 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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