Trenton Weather Forecast

    • 50
    • 70

    Decreasing Clouds

    • 62
    • 82

    Mostly Sunny

    • 63
    • 88

    Partly Sunny

    • 65
    • 91

    Mostly Sunny

    • 70
    • 95

    Mostly Sunny

    • 64
    • 93

    Chance Rain Showers

Today 15 May Mercer

Mostly cloudy this Morning, then becoming partly sunny. Highs in the upper 60s. Northwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 15 May Mercer

Partly cloudy. Lows in the upper 40s. Northwest Winds 5 to 10 Mph in the Evening, becoming light and variable.

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Trenton Temperature Statistics

May Temperature

Trenton, Mercer County Airport (5.6 miles)

  • Lowest 12 May, 2026

    40.6 °F

  • Average May

    57.7 °F

  • Highest 5 May, 2026

    82.7 °F

Climate (2021–Present)

Trenton, Mercer County Airport (5.6 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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