Union Weather Forecast

    • 19
    • 37

    Mostly Sunny

    • 34
    • 47

    Mostly Sunny

    • 30
    • 54

    Slight Chance Rain Showers

    • 19
    • 39

    Mostly Sunny

    • 21
    • 44

    Mostly Sunny

    • 19
    • 42

    Mostly Sunny

Today 15 Jan Union

Sunny, cooler with Highs in the upper 30s. Northwest Winds 5 to 10 Mph. Gusts up to 25 Mph in the morning.

Tonight 15 Jan Union

Mostly clear. Lows in the mid 20s. Northwest Winds 5 to 10 Mph with Gusts up to 25 Mph.

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  • Temperature Real-Time

Union Temperature Statistics

January Temperature

Spartanburg Memorial (23 miles)

  • Lowest 12 January, 2026

    24.8 °F

  • Average January

    49.6 °F

  • Highest 7 January, 2026

    71.6 °F

Climate (2021–Present)

Spartanburg Memorial (23 miles)

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  • Average Low 2021–2026

    51.2 °F

  • Average 2021–2026

    60.9 °F

  • Average High 2021–2026

    71.7 °F
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