South Trenton Weather Forecast

    • 72
    • 84

    Rain Showers Likely

    • 73
    • 91

    Chance Thunderstorms

    • 72
    • 91

    Rain Showers Likely

    • 72
    • 90

    Chance Thunderstorms

    • 71
    • 90

    Mostly Sunny

    • 72
    • 92

    Slight Chance Thunderstorms

Today 5 Aug Mercer

Partly sunny with a chance of Showers and Thunderstorms. Highs in the mid 80s. Light and variable Winds, becoming southeast around 5 Mph this afternoon. Chance of rain 50 percent.

Tonight 5 Aug Mercer

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms in the Evening, then a slight chance of Showers after midnight. Humid with Lows in the lower 70s. South Winds around 5 Mph. Chance of rain 50 percent.

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South Trenton Temperature Statistics

August Temperature

Trenton, Mercer County Airport (5.6 miles)

  • Lowest 1 August, 2026

    67.6 °F

  • Average August

    78.5 °F

  • Highest 1 August, 2026

    88.6 °F

Climate (2021–2026)

Trenton, Mercer County Airport (5.6 miles)

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  • Average Low 2021–2026

    46 °F

  • Average 2021–2026

    55.3 °F

  • Average High 2021–2026

    64.4 °F
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