Union Weather Forecast

    • 73
    • 95

    Chance Thunderstorms

    • 67
    • 91

    Mostly Sunny

    • 66
    • 89

    Mostly Sunny

    • 68
    • 90

    Partly Sunny

    • 70
    • 88

    Chance Rain Showers

    • 70
    • 86

    Rain Showers Likely

Today 28 Jul Union

Partly sunny this Morning, then mostly sunny with a chance of Showers and Thunderstorms this afternoon. Hot with Highs in the mid 90s. Southwest Winds 5 to 10 Mph. Chance of rain 30 percent. Heat index Values up to 104.

Tonight 28 Jul Union

Partly cloudy. A chance of Showers and Thunderstorms in the evening. Lows in the lower 70s. West Winds 5 to 10 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Union Temperature Statistics

July Temperature

Spartanburg Memorial (23 miles)

  • Lowest 23 July, 2026

    64.4 °F

  • Average July

    80 °F

  • Highest 2 July, 2026

    96.8 °F

Climate (2021–2026)

Spartanburg Memorial (23 miles)

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  • Average Low 2021–2026

    51.2 °F

  • Average 2021–2026

    61 °F

  • Average High 2021–2026

    71.9 °F
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