Union Weather Forecast

    • 67
    • 81

    Rain Showers Likely

    • 69
    • 86

    Slight Chance Thunderstorms

    • 71
    • 91

    Slight Chance Thunderstorms

    • 71
    • 94

    Slight Chance Thunderstorms

    • 69
    • 91

    Chance Thunderstorms

    • 69
    • 91

    Chance Thunderstorms

Today 9 Jun Union

Showers likely with a chance of Thunderstorms. Humid with Highs in the lower 80s. Light and variable Winds, becoming south around 5 Mph in the afternoon. Chance of rain 70 percent.

Tonight 9 Jun Union

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the upper 60s. Southwest Winds around 5 Mph in the Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Union Temperature Statistics

June Temperature

Spartanburg Memorial (23 miles)

  • Lowest 3 June, 2026

    51.8 °F

  • Average June

    69.4 °F

  • Highest 1 June, 2026

    87.8 °F

Climate (2021–Present)

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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