The Arboretum Weather Forecast

    • 73
    • 104

    Hot

    • 74
    • 106

    Hot

    • 75
    • 105

    Hot

    • 71
    • 105

    Hot

    • 68
    • 99

    Hot

    • 65
    • 95

    Mostly Sunny

Today 25 Aug Los Angeles County San Gabriel Valley

Partly cloudy in the morning then sunny. Highs 98 to 106.

Tonight 25 Aug Los Angeles County San Gabriel Valley

Mostly clear. Lows in the upper 60s to mid 70s.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

The Arboretum Temperature Statistics

August Temperature

El Monte (4.3 miles)

  • Lowest 4 August, 2026

    69.8 °F

  • Average August

    85.3 °F

  • Highest 23 August, 2026

    100.4 °F

Climate (2021–2026)

El Monte (4.3 miles)

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

  • Average Low 2021–2026

    59.9 °F

  • Average 2021–2026

    70.6 °F

  • Average High 2021–2026

    77.3 °F
Get WillyWeather+ to remove ads