Delaware River - Trenton Weather Forecast

    • 56
    • 71

    Mostly Cloudy

    • 58
    • 66

    Rain Showers Likely

    • 45
    • 71

    Partly Sunny

    • 45
    • 64

    Sunny

    • 50
    • 68

    Mostly Sunny

    • 51
    • 73

    Mostly Sunny

    • 52
    • 72

    Partly Sunny

Today 3 Oct Mercer

Mostly sunny. Highs around 70.

Tonight 3 Oct Mercer

Partly cloudy this Evening, then becoming mostly cloudy. Lows in the mid 50s. East Winds around 5 Mph.

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Delaware River - Trenton Temperature Statistics

October Temperature

Trenton, Mercer County Airport (6.8 miles)

  • Lowest 1 October, 2026

    62.1 °F

  • Average October

    69.5 °F

  • Highest 1 October, 2026

    78.1 °F

Climate (2021–2026)

Trenton, Mercer County Airport (6.8 miles)

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  • Average Low 2021–2026

    46 °F

  • Average 2021–2026

    55.3 °F

  • Average High 2021–2026

    64.5 °F
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