Upper Montclair Weather Forecast

    • 66
    • 80

    Chance Rain Showers

    • 67
    • 89

    Rain Showers Likely

    • 63
    • 82

    Mostly Sunny

    • 61
    • 82

    Mostly Sunny

    • 64
    • 82

    Rain Showers Likely

    • 63
    • 81

    Rain Showers

    • 65
    • 82

    Mostly Sunny

Today 17 Jun Western Essex

Partly sunny with a chance of Showers with a slight chance of Thunderstorms. Highs around 80. South Winds around 10 Mph with Gusts up to 20 Mph. Chance of rain 50 percent.

Tonight 17 Jun Western Essex

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms in the evening. Lows in the mid 60s. Southeast Winds 5 to 10 Mph. Gusts up to 20 Mph in the evening. Chance of rain 40 percent.

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Upper Montclair Temperature Statistics

June Temperature

Caldwell, Essex County Airport (4.3 miles)

  • Lowest 2 June, 2026

    46.9 °F

  • Average June

    72.9 °F

  • Highest 11 June, 2026

    93.9 °F

Climate (2021–2026)

Caldwell, Essex County Airport (4.3 miles)

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  • Average Low 2021–2026

    46.8 °F

  • Average 2021–2026

    56 °F

  • Average High 2021–2026

    65.3 °F
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