South Brunswick Township Weather Forecast

    • 56
    • 83

    Partly Sunny

    • 58
    • 73

    Mostly Cloudy

    • 60
    • 72

    Rain Showers

    • 55
    • 68

    Chance Rain Showers

    • 52
    • 63

    Chance Rain Showers

    • 52
    • 64

    Chance Rain Showers

Today 18 Sep Middlesex

Partly sunny. Highs in the lower 80s. North Winds 5 to 10 Mph.

Tonight 18 Sep Middlesex

Partly cloudy. Cooler. Less humid with Lows in the upper 50s. North Winds 5 to 10 Mph.

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South Brunswick Township Temperature Statistics

September Temperature

Trenton, Mercer County Airport (16.2 miles)

  • Lowest 15 September, 2026

    51.7 °F

  • Average September

    72.5 °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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