Lawrenceville Weather Forecast

    • 65
    • 88

    Mostly Sunny

    • 71
    • 91

    Mostly Sunny

    • 72
    • 90

    Chance Thunderstorms

    • 70
    • 90

    Thunderstorms Likely

    • 69
    • 88

    Slight Chance Thunderstorms

    • 68
    • 85

    Chance Thunderstorms

Today 5 Jul Mercer

Sunny, hot with Highs in the upper 80s. Light and variable Winds, becoming southwest around 5 Mph this afternoon.

Tonight 5 Jul Mercer

Mostly clear. Lows in the mid 60s. South Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lawrenceville Temperature Statistics

July Temperature

Trenton, Mercer County Airport (4.3 miles)

  • Lowest 3 July, 2025

    64.9 °F

  • Average July

    76.2 °F

  • Highest 1 July, 2025

    89.1 °F

Climate (2020–Present)

Trenton, Mercer County Airport (4.3 miles)

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  • Average Low 2020–2025

    46.3 °F

  • Average 2020–2025

    55.4 °F

  • Average High 2020–2025

    64.4 °F
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