The Arboretum Weather Forecast

    • 62
    • 83

    Mostly Sunny

    • 54
    • 81

    Increasing Clouds

    • 53
    • 72

    Partly Sunny

    • 56
    • 76

    Mostly Sunny

    • 57
    • 81

    Patchy Fog

    • 55
    • 77

    Patchy Fog

    • 54
    • 74

    Partly Sunny

Today 20 Oct Los Angeles County San Gabriel Valley

Sunny. Fog in the morning. Fog locally dense with visibility one quarter mile or less. Highs in the lower to mid 80s.

Tonight 20 Oct Los Angeles County San Gabriel Valley

Clear except for patchy low Clouds and fog after midnight. Lows in the upper 50s to mid 60s.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

The Arboretum Temperature Statistics

October Temperature

El Monte (4.3 miles)

  • Lowest 15 October, 2025

    53.6 °F

  • Average October

    72.1 °F

  • Highest 10 October, 2025

    87.8 °F

Climate (2020–Present)

El Monte (4.3 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    59.4 °F

  • Average 2020–2025

    70.2 °F

  • Average High 2020–2025

    76.9 °F
Get WillyWeather+ to remove ads