Lambertville Weather Forecast

    • 50
    • 74

    Becoming Sunny

    • 50
    • 74

    Mostly Sunny

    • 53
    • 75

    Partly Sunny

    • 51
    • 73

    Partly Sunny

    • 55
    • 80

    Mostly Sunny

    • 50
    • 76

    Mostly Sunny

    • 52
    • 75

    Mostly Sunny

Today 7 Sep Hunterdon

Mostly cloudy. A slight chance of Showers late this morning. Not as warm with Highs in the mid 70s. Northwest Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 7 Sep Hunterdon

Partly cloudy in the Evening, then clearing. Lows in the upper 40s. Northwest Winds around 5 Mph.

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Lambertville Temperature Statistics

September Temperature

Trenton, Mercer County Airport (8.7 miles)

  • Lowest 3 September, 2025

    54 °F

  • Average September

    68.5 °F

  • Highest 5 September, 2025

    86 °F

Climate (2020–Present)

Trenton, Mercer County Airport (8.7 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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