Mountainside Weather Forecast

    • 61
    • 81

    Increasing Clouds

    • 62
    • 84

    Slight Chance Thunderstorms

    • 61
    • 82

    Partly Sunny

    • 58
    • 81

    Partly Sunny

    • 59
    • 78

    Chance Rain Showers

    • 59
    • 79

    Slight Chance Rain Showers

Today 13 Sep Western Union

Patchy fog this morning. Mostly sunny. Highs in the lower 80s. Southwest Winds around 5 Mph.

Tonight 13 Sep Western Union

Partly cloudy. Lows around 60. South Winds around 5 Mph.

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Mountainside Temperature Statistics

September Temperature

Linden Airport (6.8 miles)

  • Lowest 8 September, 2025

    54.3 °F

  • Average September

    69.1 °F

  • Highest 6 September, 2025

    88.9 °F

Climate (2020–Present)

Linden Airport (6.8 miles)

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  • Average Low 2020–2025

    48.1 °F

  • Average 2020–2025

    55.7 °F

  • Average High 2020–2025

    64 °F
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