Princeton Weather Forecast

    • 65
    • 77

    Chance Rain Showers

    • 63
    • 83

    Mostly Sunny

    • 58
    • 80

    Mostly Sunny

    • 58
    • 80

    Mostly Sunny

    • 60
    • 79

    Partly Sunny

    • 62
    • 78

    Chance Rain Showers

Today 17 Sep Mercer

Mostly cloudy. A chance of Showers in the Morning, then a chance of Showers with a slight chance of Thunderstorms in the afternoon. Humid with Highs in the upper 70s. East Winds 5 to 10 Mph. Chance of rain 40 percent.

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Princeton Temperature Statistics

September Temperature

Trenton, Mercer County Airport (9.3 miles)

  • Lowest 11 September, 2021

    52 °F
  • Average September

    69.3 °F
  • Highest 8 September, 2021

    84 °F

Climate (2010–Present)

Trenton, Mercer County Airport (9.3 miles)

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  • Average Low 2010–Present

    47.3 °F
  • Average 2010–Present

    55.6 °F
  • Average High 2010–Present

    64.1 °F
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