Plainsboro Township Weather Forecast

    • 30
    • 48

    Slight Chance Rain

    • 32
    • 50

    Partly Sunny

    • 43
    • 56

    Mostly Cloudy

    • 49
    • 68

    Rain Likely

    • 25
    • 59

    Slight Chance Rain/Snow

    • 28
    • 44

    Mostly Sunny

    • 35
    • 53

    Partly Sunny

Today 23 Mar Middlesex

Showers, mainly this morning. Much cooler with Highs in the mid 40s. North Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain near 100 percent.

Tonight 23 Mar Middlesex

Patchy fog this evening. Partly cloudy with a slight chance of rain and drizzle this Evening, then mostly clear after midnight. Colder with Lows around 30. Northwest Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

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Plainsboro Township Temperature Statistics

March Temperature

Trenton, Mercer County Airport (12.4 miles)

  • Lowest 2 March, 2026

    21.7 °F

  • Average March

    44.3 °F

  • Highest 10 March, 2026

    80.7 °F

Climate (2021–Present)

Trenton, Mercer County Airport (12.4 miles)

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  • Average Low 2021–2026

    46 °F

  • Average 2021–2026

    55.2 °F

  • Average High 2021–2026

    64.3 °F
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