Mercerville Weather Forecast

    • 46
    • 64

    Rain

    • 42
    • 56

    Partly Sunny

    • 37
    • 58

    Partly Sunny

    • 38
    • 58

    Partly Sunny

    • 44
    • 60

    Slight Chance Rain Showers

    • 37
    • 60

    Mostly Sunny

Today 30 Oct Mercer

A slight chance of Thunderstorms. Rain. Rain may be heavy at Times in the afternoon. Highs in the lower 60s. East Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain near 100 percent.

Tonight 30 Oct Mercer

Rain likely with a chance of Thunderstorms in the Evening, then Showers likely after midnight. Rain may be heavy at Times in the evening. Lows in the mid 40s. Southeast Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming southwest after midnight. Chance of rain 70 percent.

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Mercerville Temperature Statistics

October Temperature

Trenton, Mercer County Airport (6.8 miles)

  • Lowest 27 October, 2025

    35.1 °F

  • Average October

    57 °F

  • Highest 5 October, 2025

    82.9 °F

Climate (2020–Present)

Trenton, Mercer County Airport (6.8 miles)

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  • Average Low 2020–2025

    46.3 °F

  • Average 2020–2025

    55.4 °F

  • Average High 2020–2025

    64.5 °F
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