Upper Montclair Weather Forecast

    • 69
    • 84

    Rain Showers

    • 62
    • 82

    Mostly Sunny

    • 67
    • 82

    Partly Sunny

    • 70
    • 84

    Rain Showers

    • 66
    • 84

    Chance Thunderstorms

    • 65
    • 81

    Mostly Sunny

Today 18 Jul Western Essex

A chance of Showers in the Morning, then Showers with a chance of Thunderstorms in the afternoon. Smoke. More humid with Highs in the mid 80s. South Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of rain 90 percent.

Tonight 18 Jul Western Essex

Areas of smoke in the evening. Showers with a chance of Thunderstorms in the Evening, then Showers likely with a slight chance of Thunderstorms after midnight. Humid with Lows in the upper 60s. Southwest Winds around 10 Mph, becoming west after midnight. Gusts up to 25 Mph. Chance of rain 90 percent.

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Upper Montclair Temperature Statistics

July Temperature

Caldwell, Essex County Airport (4.3 miles)

  • Lowest 7 July, 2026

    63 °F

  • Average July

    78.5 °F

  • Highest 2 July, 2026

    102 °F

Climate (2021–2026)

Caldwell, Essex County Airport (4.3 miles)

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  • Average Low 2021–2026

    46.7 °F

  • Average 2021–2026

    56 °F

  • Average High 2021–2026

    65.2 °F
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