Mahwah Weather Forecast

    • 70
    • 85

    Chance Rain Showers

    • 60
    • 85

    Increasing Clouds

    • 54
    • 78

    Mostly Sunny

    • 63
    • 79

    Rain Showers Likely

    • 63
    • 79

    Slight Chance Rain Showers

    • 60
    • 80

    Partly Sunny

    • 65
    • 81

    Partly Sunny

Today 9 Sep Western Bergen

Partly sunny. Highs in the mid 80s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 9 Sep Western Bergen

Mostly cloudy. A slight chance of Showers after midnight. Lows around 70. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 20 percent.

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Mahwah Temperature Statistics

September Temperature

Caldwell, Essex County Airport (16.2 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 (16.2 miles)

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  • Average Low 2021–2026

    46.7 °F

  • Average 2021–2026

    55.9 °F

  • Average High 2021–2026

    65.1 °F
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