Delaware River - Trenton Weather Forecast

    • 66
    • 90

    Increasing Clouds

    • 69
    • 93

    Mostly Sunny

    • 72
    • 97

    Hot

    • 58
    • 94

    Rain Showers Likely

    • 53
    • 74

    Chance Rain Showers

    • 51
    • 68

    Chance Rain Showers

Today 17 May Mercer

Sunny, hot with Highs in the upper 80s. West Winds 5 to 10 Mph.

Tonight 17 May Mercer

Partly cloudy. Lows in the mid 60s. Southwest Winds around 5 Mph.

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Delaware River - Trenton Temperature Statistics

May Temperature

Trenton, Mercer County Airport (6.8 miles)

  • Lowest 12 May, 2026

    40.6 °F

  • Average May

    57.8 °F

  • Highest 5 May, 2026

    82.7 °F

Climate (2021–Present)

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

    64.3 °F
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