Trenton-Robbinsville Airport Weather Forecast

    • 25
    • 42

    Snow

    • 15
    • 31

    Snow

    • 18
    • 30

    Mostly Cloudy

    • 20
    • 33

    Partly Sunny

    • 29
    • 43

    Mostly Cloudy

    • 35
    • 52

    Mostly Cloudy

Today 13 Dec Mercer

Mostly cloudy. Highs in the lower 40s. Southwest Winds 5 to 10 Mph.

Tonight 13 Dec Mercer

Mostly cloudy and cold. Near steady temperature around 20. Southwest Winds around 5 Mph.

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Trenton-Robbinsville Airport Temperature Statistics

December Temperature

Trenton, Mercer County Airport (11.8 miles)

  • Lowest 9 December, 2025

    10.9 °F

  • Average December

    31.3 °F

  • Highest 10 December, 2025

    43 °F

Climate (2020–Present)

Trenton, Mercer County Airport (11.8 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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