Union Weather Forecast

    • 71
    • 90

    Isolated Thunderstorms

    • 70
    • 87

    Rain Showers Likely

    • 70
    • 85

    Chance Thunderstorms

    • 70
    • 91

    Mostly Sunny

    • 69
    • 91

    Mostly Sunny

    • 69
    • 90

    Partly Sunny

    • 70
    • 89

    Slight Chance Thunderstorms

Today 30 Jun Union

Mostly sunny with isolated Showers and Thunderstorms. Near steady Temperatures around 90. South Winds around 5 Mph. Chance of rain 20 percent.

Tonight 30 Jun Union

Partly cloudy. Isolated Showers and Thunderstorms this evening. Lows in the lower 70s. South Winds around 5 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Union Temperature Statistics

June Temperature

Spartanburg Memorial (23 miles)

  • Lowest 1 June, 2025

    57.2 °F

  • Average June

    76.5 °F

  • Highest 24 June, 2025

    96.8 °F

Climate (2020–Present)

Spartanburg Memorial (23 miles)

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  • Average Low 2020–2025

    51.2 °F

  • Average 2020–2025

    60.8 °F

  • Average High 2020–2025

    71.7 °F
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