Plainsboro Township Weather Forecast

    • 28
    • 43

    Mostly Sunny

    • 36
    • 47

    Increasing Clouds

    • 31
    • 50

    Rain/Snow Likely

    • 17
    • 39

    Chance Rain/Snow

    • 21
    • 32

    Partly Sunny

    • 23
    • 41

    Mostly Cloudy

    • 16
    • 35

    Chance Snow

Today 12 Jan Middlesex

Sunny. Highs in the lower 40s. West Winds 5 to 10 Mph with Gusts up to 25 Mph.

Tonight 12 Jan Middlesex

Mostly clear. Cold with Lows in the upper 20s. Southwest Winds around 5 Mph.

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Plainsboro Township Temperature Statistics

January Temperature

Trenton, Mercer County Airport (12.4 miles)

  • Lowest 3 January, 2026

    17.1 °F

  • Average January

    33.9 °F

  • Highest 9 January, 2026

    53.1 °F

Climate (2021–Present)

Trenton, Mercer County Airport (12.4 miles)

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  • Average Low 2021–2026

    46.1 °F

  • Average 2021–2026

    55.2 °F

  • Average High 2021–2026

    64.3 °F
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