South Brunswick Township Weather Forecast

    • 53
    • 74

    Mostly Sunny

    • 61
    • 81

    Mostly Sunny

    • 66
    • 84

    Partly Sunny

    • 59
    • 83

    Partly Sunny

    • 61
    • 74

    Mostly Cloudy

    • 62
    • 81

    Chance Rain Showers

Today 15 Sep Middlesex

Sunny. Highs in the lower 70s. Northeast Winds around 5 Mph, becoming southeast this afternoon.

Tonight 15 Sep Middlesex

Mostly clear. Lows in the mid 50s. Southeast Winds around 5 Mph, becoming southwest after midnight.

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South Brunswick Township Temperature Statistics

September Temperature

Trenton, Mercer County Airport (16.2 miles)

  • Lowest 8 September, 2026

    56.6 °F

  • Average September

    73.9 °F

  • Highest 1 September, 2026

    88.6 °F

Climate (2021–2026)

Trenton, Mercer County Airport (16.2 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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