Montclair Weather Forecast

    • 66
    • 84

    Partly Sunny

    • 62
    • 82

    Increasing Clouds

    • 58
    • 76

    Partly Sunny

    • 60
    • 79

    Mostly Sunny

    • 63
    • 81

    Partly Sunny

    • 69
    • 82

    Chance Rain Showers

    • 62
    • 83

    Partly Sunny

Today 4 Sep Western Essex

Mostly sunny. Near steady temperature in the mid 80s. Northwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 4 Sep Western Essex

Partly cloudy. Lows in the mid 60s. Northwest Winds 5 to 10 Mph.

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Montclair Temperature Statistics

September Temperature

Caldwell, Essex County Airport (5 miles)

  • Lowest 2 September, 2026

    64.9 °F

  • Average September

    69.9 °F

  • Highest 1 September, 2026

    84 °F

Climate (2021–2026)

Caldwell, Essex County Airport (5 miles)

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  • Average Low 2021–2026

    46.6 °F

  • Average 2021–2026

    55.9 °F

  • Average High 2021–2026

    65.1 °F
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