Mercer County Park Weather Forecast

    • 21
    • 43

    Partly Sunny

    • 43
    • 51

    Mostly Cloudy

    • 25
    • 54

    Rain Likely

    • 31
    • 40

    Mostly Cloudy

    • 25
    • 48

    Partly Sunny

    • 22
    • 38

    Mostly Cloudy

Today 17 Dec Mercer

Mostly sunny. Not as cool with Highs in the lower 40s. Southwest Winds 5 to 10 Mph with Gusts up to 25 Mph.

Tonight 17 Dec Mercer

Partly cloudy. Cold with Lows in the lower 20s. West Winds 5 to 10 Mph in the Evening, becoming light and variable.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Mercer County Park Temperature Statistics

December Temperature

Trenton, Mercer County Airport (8.7 miles)

  • Lowest 9 December, 2025

    10.9 °F

  • Average December

    30.7 °F

  • Highest 10 December, 2025

    43 °F

Climate (2020–Present)

Trenton, Mercer County Airport (8.7 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    46.2 °F

  • Average 2020–2025

    55.3 °F

  • Average High 2020–2025

    64.3 °F
Get WillyWeather+ to remove ads