Union Weather Forecast

    • 63
    • 88

    Chance Rain Showers

    • 64
    • 86

    Mostly Sunny

    • 70
    • 90

    Mostly Sunny

    • 73
    • 92

    Slight Chance Thunderstorms

    • 74
    • 94

    Mostly Sunny

    • 74
    • 96

    Mostly Sunny

Today 23 Jun Union

Partly sunny in the Morning, then becoming mostly sunny. A chance of Showers. A chance of Thunderstorms in the afternoon. Humid with Highs around 90. West Winds around 5 Mph. Chance of rain 40 percent.

Tonight 23 Jun Union

Mostly cloudy with a 50 percent chance of Showers. Lows in the lower 70s. Southwest Winds 5 to 10 Mph.

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Union Temperature Statistics

June Temperature

Spartanburg Memorial (23 miles)

  • Lowest 3 June, 2026

    51.8 °F

  • Average June

    74.7 °F

  • Highest 12 June, 2026

    93.2 °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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