Delaware River - Trenton Weather Forecast

    • 66
    • 79

    Chance Thunderstorms

    • 64
    • 77

    Chance Rain Showers

    • 65
    • 83

    Partly Sunny

    • 70
    • 86

    Chance Thunderstorms

    • 69
    • 89

    Chance Thunderstorms

    • 66
    • 86

    Chance Thunderstorms

    • 67
    • 87

    Slight Chance Thunderstorms

Today 6 Jul Mercer

Showers with a chance of Thunderstorms. Some Thunderstorms may produce heavy rainfall. Not as warm with Highs in the upper 70s. Northeast Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 90 percent.

Tonight 6 Jul Mercer

Cloudy. Showers likely with a chance of Thunderstorms this Evening, then a chance of Showers with a slight chance of Thunderstorms after midnight. Patchy fog. Some Thunderstorms may produce heavy rainfall this evening. Lows in the mid 60s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 70 percent.

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Delaware River - Trenton Temperature Statistics

July Temperature

Trenton, Mercer County Airport (6.8 miles)

  • Lowest 1 July, 2026

    71.7 °F

  • Average July

    86.5 °F

  • Highest 2 July, 2026

    101.6 °F

Climate (2021–2026)

Trenton, Mercer County Airport (6.8 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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