Lambertville Weather Forecast

    • 71
    • 86

    Mostly Sunny

    • 64
    • 84

    Chance Rain Showers

    • 58
    • 78

    Mostly Sunny

    • 65
    • 79

    Chance Rain Showers

    • 66
    • 81

    Chance Rain Showers

    • 65
    • 83

    Partly Sunny

Today 9 Sep Hunterdon

Patchy fog this morning. Partly sunny. Hot with Highs in the mid 80s. Southwest Winds 5 to 10 Mph.

Tonight 9 Sep Hunterdon

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms after midnight. Warmer with Lows in the upper 60s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 40 percent.

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  • Temperature Real-Time

Lambertville Temperature Statistics

September Temperature

Trenton, Mercer County Airport (8.7 miles)

  • Lowest 6 September, 2026

    62.1 °F

  • Average September

    75.3 °F

  • Highest 1 September, 2026

    88.6 °F

Climate (2021–2026)

Trenton, Mercer County Airport (8.7 miles)

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  • Average Low 2021–2026

    46 °F

  • Average 2021–2026

    55.3 °F

  • Average High 2021–2026

    64.5 °F
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