Princeton Weather Forecast

    • 60
    • 80

    Rain Showers

    • 46
    • 76

    Rain Showers

    • 45
    • 62

    Partly Sunny

    • 46
    • 73

    Mostly Sunny

    • 64
    • 80

    Slight Chance Thunderstorms

    • 52
    • 81

    Slight Chance Rain Showers

Today 25 Apr Mercer

Mostly sunny. Highs around 80. South Winds 5 to 10 Mph.

Tonight 25 Apr Mercer

Cloudy. A chance of Showers in the Evening, then Showers with a slight chance of Thunderstorms after midnight. Lows around 60. South Winds around 10 Mph with Gusts up to 20 Mph. Chance of rain 90 percent.

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Princeton Temperature Statistics

April Temperature

Trenton, Mercer County Airport (9.3 miles)

  • Lowest 9 April, 2025

    29.8 °F

  • Average April

    51.7 °F

  • Highest 19 April, 2025

    80.7 °F

Climate (2020–Present)

Trenton, Mercer County Airport (9.3 miles)

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  • Average Low 2020–2025

    46.2 °F

  • Average 2020–2025

    55.3 °F

  • Average High 2020–2025

    64.3 °F
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