Delaware River - Trenton Weather Forecast

    • 45
    • 57

    Chance Rain

    • 42
    • 50

    Rain

    • 29
    • 50

    Chance Rain Showers

    • 29
    • 41

    Partly Sunny

    • 32
    • 47

    Partly Sunny

    • 32
    • 48

    Mostly Cloudy

Today 9 Jan Mercer

Partly sunny in the Morning, then cloudy with a chance of rain Showers in the afternoon. Highs in the mid 50s. South Winds 5 to 10 Mph. Chance of rain 40 percent.

Tonight 9 Jan Mercer

Cloudy with a 50 percent chance of Showers. Not as cool with Lows in the lower 40s. Southwest Winds around 10 Mph, becoming northwest after midnight.

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Delaware River - Trenton Temperature Statistics

January Temperature

Trenton, Mercer County Airport (6.8 miles)

  • Lowest 3 January, 2026

    17.1 °F

  • Average January

    27.8 °F

  • Highest 6 January, 2026

    39.9 °F

Climate (2021–Present)

Trenton, Mercer County Airport (6.8 miles)

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  • Average Low 2021–2026

    46.1 °F

  • Average 2021–2026

    55.2 °F

  • Average High 2021–2026

    64.3 °F
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