Pennington / Prospect Weather Forecast

    • 48
    • 69

    Becoming Sunny

    • 55
    • 77

    Mostly Sunny

    • 52
    • 78

    Mostly Sunny

    • 52
    • 74

    Slight Chance Thunderstorms

    • 54
    • 75

    Mostly Sunny

    • 60
    • 82

    Partly Sunny

Today 30 May Mercer

Mostly sunny. Not as warm with Highs in the upper 60s. North Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 30 May Mercer

Mostly clear. Lows in the upper 40s. Northeast Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming northwest after midnight.

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Pennington / Prospect Temperature Statistics

May Temperature

Trenton, Mercer County Airport (3.1 miles)

  • Lowest 12 May, 2026

    40.6 °F

  • Average May

    62.6 °F

  • Highest 19 May, 2026

    96.7 °F

Climate (2021–Present)

Trenton, Mercer County Airport (3.1 miles)

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  • Average Low 2021–2026

    46 °F

  • Average 2021–2026

    55.2 °F

  • Average High 2021–2026

    64.3 °F
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