Union City Weather Forecast

    • 57
    • 94

    Rain Showers Likely

    • 52
    • 64

    Slight Chance Rain Showers

    • 50
    • 67

    Rain Showers

    • 51
    • 59

    Rain Showers

    • 56
    • 66

    Chance Rain Showers

    • 60
    • 76

    Slight Chance Rain Showers

    • 62
    • 80

    Slight Chance Rain Showers

Today 20 May Western Union

Showers with a chance of Thunderstorms. Some Thunderstorms may be severe with damaging Winds and large hail. Highs in the lower 90s. West Winds around 10 Mph with Gusts up to 20 Mph. Chance of rain 80 percent. Heat index Values in the mid 90s.

Tonight 20 May Western Union

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms late this Evening, then a chance of Showers after midnight. Cooler with Lows in the mid 50s. North Winds 5 to 10 Mph. Chance of rain 50 percent.

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Union City Temperature Statistics

May Temperature

Newark, Newark International Airport (5 miles)

  • Lowest 1 May, 2026

    46.7 °F

  • Average May

    63.1 °F

  • Highest 17 May, 2026

    91.7 °F

Climate (2021–Present)

Newark, Newark International Airport (5 miles)

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  • Average Low 2021–2026

    49.9 °F

  • Average 2021–2026

    58.1 °F

  • Average High 2021–2026

    66.4 °F
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