Mercer County Park Weather Forecast

    • 33
    • 38

    Rain Likely

    • 25
    • 56

    Rain

    • 22
    • 34

    Mostly Cloudy

    • 24
    • 36

    Mostly Cloudy

    • 17
    • 35

    Chance Snow

    • 17
    • 31

    Partly Sunny

Today 28 Dec Mercer

Cloudy. A chance of rain in the afternoon. Highs around 40. West Winds around 5 Mph. Chance of rain 40 percent.

Tonight 28 Dec Mercer

Rain. Not as cool with Lows in the lower 30s. Temperature rising to around 40 after midnight. South Winds 5 to 10 Mph. Chance of rain 80 percent.

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Mercer County Park Temperature Statistics

December Temperature

Trenton, Mercer County Airport (8.7 miles)

  • Lowest 9 December, 2025

    10.9 °F

  • Average December

    31.9 °F

  • Highest 19 December, 2025

    57 °F

Climate (2020–Present)

Trenton, Mercer County Airport (8.7 miles)

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  • Average Low 2020–2025

    46.1 °F

  • Average 2020–2025

    55.3 °F

  • Average High 2020–2025

    64.3 °F
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