Upper Montclair Weather Forecast

    • 66
    • 81

    Increasing Clouds

    • 68
    • 84

    Chance Rain Showers

    • 58
    • 80

    Partly Sunny

    • 60
    • 72

    Rain Showers Likely

    • 62
    • 74

    Chance Rain Showers

    • 60
    • 74

    Chance Rain Showers

Today 16 Sep Western Essex

Mostly sunny. Highs in the lower 80s. Southwest Winds around 5 Mph.

Tonight 16 Sep Western Essex

Mostly cloudy in the Evening, then becoming partly cloudy. Lows in the mid 60s. Southwest Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Upper Montclair Temperature Statistics

September Temperature

Caldwell, Essex County Airport (4.3 miles)

  • Lowest 7 September, 2026

    55 °F

  • Average September

    71.6 °F

  • Highest 3 September, 2026

    86 °F

Climate (2021–2026)

Caldwell, Essex County Airport (4.3 miles)

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

  • Average Low 2021–2026

    46.6 °F

  • Average 2021–2026

    55.9 °F

  • Average High 2021–2026

    65.1 °F
Get WillyWeather+ to remove ads