Trenton Weather Forecast

    • 50
    • 72

    Increasing Clouds

    • 39
    • 73

    Mostly Sunny

    • 39
    • 63

    Partly Sunny

    • 44
    • 66

    Mostly Cloudy

    • 48
    • 68

    Mostly Cloudy

    • 48
    • 68

    Mostly Cloudy

Today 29 Oct Mercer

Areas of fog this morning. Mostly sunny. Highs in the lower 70s. Southwest Winds around 5 Mph.

Tonight 29 Oct Mercer

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

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Trenton Temperature Statistics

October Temperature

Trenton, Mercer County Airport (5.6 miles)

  • Lowest 24 October, 2026

    33.7 °F

  • Average October

    58.5 °F

  • Highest 2 October, 2026

    87.7 °F

Climate (2021–2026)

Trenton, Mercer County Airport (5.6 miles)

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  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    55.2 °F

  • Average High 2021–2026

    64.5 °F
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