Trenton Weather Forecast

    • 3
    • 22

    Increasing Clouds

    • -2
    • 16

    Increasing Clouds

    • 8
    • 20

    Chance Snow

    • 13
    • 24

    Chance Snow

    • 14
    • 31

    Partly Sunny

    • 14
    • 31

    Partly Sunny

    • 11
    • 30

    Chance Snow

Today 29 Jan Mercer

Mostly sunny. Cold with Highs around 19. West Winds 10 to 15 Mph with Gusts up to 25 Mph. Wind chill Values as low as 15 below this morning.

Tonight 29 Jan Mercer

Partly cloudy this Evening, then clearing. Cold with Lows around 2 above. West Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Trenton Temperature Statistics

January Temperature

Trenton, Mercer County Airport (5.6 miles)

  • Lowest 21 January, 2026

    -0.3 °F

  • Average January

    30 °F

  • Highest 14 January, 2026

    54.6 °F

Climate (2021–Present)

Trenton, Mercer County Airport (5.6 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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