Trenton Weather Forecast

    • 63
    • 82

    Rain Showers

    • 66
    • 86

    Partly Sunny

    • 68
    • 89

    Mostly Cloudy

    • 67
    • 85

    Rain Showers Likely

    • 65
    • 85

    Chance Thunderstorms

    • 66
    • 86

    Slight Chance Rain Showers

Today 30 Jul Mercer

Mostly cloudy. Isolated Showers this Morning, then scattered Showers with isolated Thunderstorms this afternoon. Highs in the lower 80s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

Tonight 30 Jul Mercer

Partly cloudy with scattered Showers with isolated Thunderstorms in the Evening, then mostly clear after midnight. Humid with Lows in the lower 60s. North Winds 5 to 10 Mph, becoming northwest after midnight. Chance of rain 30 percent.

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Trenton Temperature Statistics

July Temperature

Trenton, Mercer County Airport (5.6 miles)

  • Lowest 20 July, 2026

    57.7 °F

  • Average July

    77.1 °F

  • Highest 2 July, 2026

    101.6 °F

Climate (2021–2026)

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

    64.4 °F
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