Union City Weather Forecast

    • 70
    • 89

    Mostly Sunny

    • 74
    • 97

    Hot

    • 57
    • 90

    Rain Showers

    • 54
    • 71

    Slight Chance Rain Showers

    • 53
    • 67

    Rain Showers Likely

    • 56
    • 65

    Chance Rain Showers

Today 18 May Western Union

Sunny. Highs around 90. Southeast Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 18 May Western Union

Mostly clear in the Evening, then becoming partly cloudy. Lows in the upper 60s. South Winds 5 to 10 Mph. Gusts up to 20 Mph in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Union City Temperature Statistics

May Temperature

Newark, Newark International Airport (5 miles)

  • Lowest 1 May, 2026

    46.7 °F

  • Average May

    60.6 °F

  • Highest 5 May, 2026

    86.6 °F

Climate (2021–Present)

Newark, Newark International Airport (5 miles)

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  • Average Low 2021–2026

    49.8 °F

  • Average 2021–2026

    58.1 °F

  • Average High 2021–2026

    66.4 °F
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