Princeton Airport Weather Forecast

    • 52
    • 77

    Rain Showers

    • 41
    • 65

    Slight Chance Rain Showers

    • 48
    • 68

    Rain Showers Likely

    • 42
    • 63

    Mostly Sunny

    • 38
    • 60

    Mostly Sunny

    • 38
    • 59

    Partly Sunny

    • 42
    • 60

    Mostly Cloudy

Today 19 Oct Somerset

Mostly sunny. Highs in the upper 70s. Southeast Winds 5 to 10 Mph, increasing to south 15 to 20 Mph with Gusts up to 30 Mph this afternoon.

Tonight 19 Oct Somerset

Isolated Thunderstorms. Scattered Showers this Evening, then widespread Showers after midnight. Some Thunderstorms may produce gusty Winds. Lows in the lower 50s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain near 100 percent.

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Princeton Airport Temperature Statistics

October Temperature

Trenton, Mercer County Airport (11.8 miles)

  • Lowest 10 October, 2025

    39 °F

  • Average October

    59.3 °F

  • Highest 5 October, 2025

    82.9 °F

Climate (2020–Present)

Trenton, Mercer County Airport (11.8 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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