Union Square Weather Forecast

    • 33
    • 38

    Mostly Cloudy

    • 26
    • 45

    Partly Sunny

    • 30
    • 39

    Chance Rain/Snow

    • 34
    • 44

    Slight Chance Rain/Snow

    • 32
    • 44

    Chance Rain

    • 40
    • 48

    Chance Rain

Today 20 Dec Eastern Union

Partly sunny. Much cooler with Highs in the upper 30s. Southwest Winds 5 to 10 Mph.

Tonight 20 Dec Eastern Union

Mostly cloudy. Near steady temperature in the mid 30s. Southwest Winds 5 to 10 Mph. Gusts up to 20 Mph after midnight.

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Union Square Temperature Statistics

December Temperature

Newark, Newark International Airport (1.9 miles)

  • Lowest 9 December, 2025

    18 °F

  • Average December

    33.2 °F

  • Highest 18 December, 2025

    50 °F

Climate (2020–Present)

Newark, Newark International Airport (1.9 miles)

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  • Average Low 2020–2025

    50 °F

  • Average 2020–2025

    58.1 °F

  • Average High 2020–2025

    66.4 °F
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