Union City Weather Forecast

    • 64
    • 70

    Rain Showers Likely

    • 64
    • 82

    Becoming Sunny

    • 58
    • 84

    Mostly Sunny

    • 55
    • 74

    Mostly Sunny

    • 59
    • 73

    Partly Sunny

    • 61
    • 77

    Partly Sunny

    • 63
    • 82

    Partly Sunny

Today 17 Sep Western Union

Showers likely with a chance of Thunderstorms. Near steady temperature in the upper 60s. Northeast Winds around 10 Mph with Gusts up to 20 Mph. Chance of rain 70 percent.

Tonight 17 Sep Western Union

Mostly cloudy. Showers likely with a chance of Thunderstorms in the Evening, then a chance of Showers after midnight. Patchy fog. Lows in the lower 60s. Northeast Winds 5 to 10 Mph. Gusts up to 20 Mph in the evening. Chance of rain 70 percent.

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Union City Temperature Statistics

September Temperature

Newark, Newark International Airport (5 miles)

  • Lowest 9 September, 2025

    57 °F

  • Average September

    70.9 °F

  • Highest 6 September, 2025

    90 °F

Climate (2020–Present)

Newark, Newark International Airport (5 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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