Duarte Weather Forecast

    • 64
    • 84

    Becoming Sunny

    • 68
    • 94

    Mostly Sunny

    • 68
    • 92

    Mostly Sunny

    • 68
    • 91

    Mostly Sunny

    • 66
    • 91

    Mostly Sunny

    • 63
    • 85

    Mostly Sunny

Today 22 Sep Los Angeles County San Gabriel Valley

Mostly cloudy in the morning then sunny. Highs in the upper 70s to mid 80s.

Tonight 22 Sep Los Angeles County San Gabriel Valley

Mostly clear. Lows in the upper 50s and 60s.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Duarte Temperature Statistics

September Temperature

El Monte (5 miles)

  • Lowest 2 September, 2026

    64.4 °F

  • Average September

    81 °F

  • Highest 9 September, 2026

    107.6 °F

Climate (2021–2026)

El Monte (5 miles)

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

  • Average Low 2021–2026

    60 °F

  • Average 2021–2026

    70.7 °F

  • Average High 2021–2026

    77.3 °F
Get WillyWeather+ to remove ads