Mercerville-Hamilton Square Weather Forecast

    • 27
    • 40

    Increasing Clouds

    • 33
    • 49

    Mostly Cloudy

    • 44
    • 59

    Rain

    • 43
    • 63

    Mostly Cloudy

    • 40
    • 66

    Chance Rain

    • 28
    • 52

    Partly Sunny

    • 31
    • 47

    Mostly Cloudy

Today 18 Mar Mercer

Mostly sunny. Highs around 40. South Winds around 5 Mph.

Tonight 18 Mar Mercer

Mostly clear this Evening, then becoming partly cloudy. Cold with Lows in the mid 20s. Southeast Winds around 5 Mph.

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Mercerville-Hamilton Square Temperature Statistics

March Temperature

Trenton, Mercer County Airport (8.1 miles)

  • Lowest 2 March, 2026

    21.7 °F

  • Average March

    45.6 °F

  • Highest 10 March, 2026

    79 °F

Climate (2021–Present)

Trenton, Mercer County Airport (8.1 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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