Union Weather Forecast

    • 45
    • 74

    Mostly Sunny

    • 45
    • 73

    Sunny

    • 44
    • 74

    Sunny

    • 43
    • 69

    Sunny

    • 43
    • 66

    Sunny

    • 43
    • 69

    Sunny

    • 46
    • 73

    Mostly Sunny

Today 20 Oct Union

Sunny. Highs in the mid 70s.

Tonight 20 Oct Union

Mostly clear. Lows in the mid 40s. Light and variable Winds, becoming north around 5 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Union Temperature Statistics

October Temperature

Spartanburg Memorial (23 miles)

  • Lowest 18 October, 2026

    41 °F

  • Average October

    66.4 °F

  • Highest 2 October, 2026

    87.8 °F

Climate (2021–2026)

Spartanburg Memorial (23 miles)

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  • Average Low 2021–2026

    51.3 °F

  • Average 2021–2026

    61.1 °F

  • Average High 2021–2026

    72.1 °F
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