Lawrenceville Weather Forecast

    • 28
    • 43

    Rain

    • 24
    • 35

    Partly Sunny

    • 22
    • 37

    Chance Snow

    • 24
    • 39

    Chance Snow

    • 15
    • 32

    Partly Sunny

    • 17
    • 30

    Partly Sunny

Today 10 Dec Mercer

Partly sunny this Morning, then cloudy with rain this afternoon. Not as cool with Highs in the mid 40s. Southwest Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of rain 80 percent.

Tonight 10 Dec Mercer

Mostly cloudy with a chance of rain in the Evening, then partly cloudy after midnight. Cold with Lows in the upper 20s. Southwest Winds around 10 Mph, becoming west after midnight. Chance of rain 40 percent.

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Lawrenceville Temperature Statistics

December Temperature

Trenton, Mercer County Airport (4.3 miles)

  • Lowest 8 December, 2025

    19 °F

  • Average December

    31.5 °F

  • Highest 1 December, 2025

    42.1 °F

Climate (2020–Present)

Trenton, Mercer County Airport (4.3 miles)

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  • Average Low 2020–2025

    46.2 °F

  • Average 2020–2025

    55.3 °F

  • Average High 2020–2025

    64.4 °F
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