Monmouth Junction Weather Forecast

    • 56
    • 80

    Mostly Sunny

    • 60
    • 83

    Partly Sunny

    • 70
    • 86

    Partly Sunny

    • 62
    • 86

    Chance Rain Showers

    • 58
    • 80

    Mostly Sunny

    • 62
    • 81

    Partly Sunny

Today 7 Sep Middlesex

Sunny. Highs around 80. Northwest Winds around 5 Mph.

Tonight 7 Sep Middlesex

Mostly clear. Lows in the upper 50s. Northwest Winds around 5 Mph.

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Monmouth Junction Temperature Statistics

September Temperature

Trenton, Mercer County Airport (15.5 miles)

  • Lowest 5 September, 2026

    66 °F

  • Average September

    76.4 °F

  • Highest 1 September, 2026

    88.6 °F

Climate (2021–2026)

Trenton, Mercer County Airport (15.5 miles)

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  • Average Low 2021–2026

    46 °F

  • Average 2021–2026

    55.3 °F

  • Average High 2021–2026

    64.5 °F
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