Princeton Junction Weather Forecast

    • 50
    • 66

    Clearing Late

    • 39
    • 68

    Mostly Sunny

    • 37
    • 61

    Mostly Sunny

    • 41
    • 64

    Partly Sunny

    • 50
    • 70

    Partly Sunny

    • 50
    • 76

    Rain Showers Likely

Today 14 Oct Mercer

Mostly cloudy. A slight chance of Showers this morning. Highs in the mid 60s. North Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 20 percent.

Tonight 14 Oct Mercer

Mostly cloudy in the Evening, then becoming partly cloudy. Lows around 50. North Winds 5 to 10 Mph.

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Princeton Junction Temperature Statistics

October Temperature

Trenton, Mercer County Airport (10.6 miles)

  • Lowest 10 October, 2025

    39 °F

  • Average October

    61 °F

  • Highest 5 October, 2025

    82.9 °F

Climate (2020–Present)

Trenton, Mercer County Airport (10.6 miles)

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  • Average Low 2020–2025

    46.3 °F

  • Average 2020–2025

    55.4 °F

  • Average High 2020–2025

    64.5 °F
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