South Trenton Weather Forecast

    • 21
    • 47

    Decreasing Clouds

    • 26
    • 30

    Snow

    • 24
    • 36

    Rain/Snow Likely

    • 33
    • 40

    Rain

    • 23
    • 44

    Chance Rain

    • 21
    • 33

    Partly Sunny

Today 25 Dec Mercer

Mostly cloudy in the Morning, then becoming partly sunny. Highs in the mid 40s. Southwest Winds 5 to 10 Mph, becoming west 10 to 15 Mph in the afternoon.

Tonight 25 Dec Mercer

Mostly cloudy. Cold with Lows around 20. North Winds around 10 Mph with Gusts up to 20 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

South Trenton Temperature Statistics

December Temperature

Trenton, Mercer County Airport (5.6 miles)

  • Lowest 9 December, 2025

    10.9 °F

  • Average December

    31.1 °F

  • Highest 19 December, 2025

    57 °F

Climate (2020–Present)

Trenton, Mercer County Airport (5.6 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    46.1 °F

  • Average 2020–2025

    55.3 °F

  • Average High 2020–2025

    64.4 °F
Get WillyWeather+ to remove ads