Pennington / Prospect Weather Forecast

    • 0
    • 20

    Decreasing Clouds

    • -2
    • 17

    Partly Sunny

    • 11
    • 20

    Chance Snow

    • 13
    • 23

    Chance Snow

    • 14
    • 31

    Partly Sunny

    • 12
    • 32

    Partly Sunny

Today 29 Jan Mercer

Sunny, cold with Highs around 20. West Winds 5 to 10 Mph with Gusts up to 20 Mph. Wind chill Values as low as 11 below in the morning.

Tonight 29 Jan Mercer

Mostly clear. Cold with Lows around 1 below. West Winds around 5 Mph.

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Pennington / Prospect Temperature Statistics

January Temperature

Trenton, Mercer County Airport (3.1 miles)

  • Lowest 21 January, 2026

    -0.3 °F

  • Average January

    30.6 °F

  • Highest 14 January, 2026

    54.6 °F

Climate (2021–Present)

Trenton, Mercer County Airport (3.1 miles)

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  • Average Low 2021–2026

    46.1 °F

  • Average 2021–2026

    55.2 °F

  • Average High 2021–2026

    64.3 °F
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