Upper Montclair Weather Forecast

    • 54
    • 70

    Rain

    • 54
    • 75

    Mostly Sunny

    • 56
    • 75

    Partly Sunny

    • 55
    • 73

    Partly Sunny

    • 58
    • 79

    Mostly Sunny

    • 53
    • 74

    Mostly Sunny

Today 7 Sep Western Essex

Rain. Highs in the lower 70s. Northwest Winds around 5 Mph. Chance of rain 90 percent.

Tonight 7 Sep Western Essex

Partly cloudy in the Evening, then becoming mostly clear. Lows in the lower 50s. Northwest Winds around 5 Mph.

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  • Temperature Real-Time

Upper Montclair Temperature Statistics

September Temperature

Caldwell, Essex County Airport (4.3 miles)

  • Lowest 2 September, 2025

    55 °F

  • Average September

    68.7 °F

  • Highest 5 September, 2025

    84.9 °F

Climate (2020–Present)

Caldwell, Essex County Airport (4.3 miles)

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  • Average Low 2020–2025

    47.1 °F

  • Average 2020–2025

    56.3 °F

  • Average High 2020–2025

    65.6 °F
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