Union Weather Forecast

    • 67
    • 87

    Becoming Sunny

    • 68
    • 87

    Rain Showers Likely

    • 68
    • 86

    Rain Showers Likely

    • 68
    • 85

    Rain Showers Likely

    • 68
    • 84

    Chance Thunderstorms

    • 69
    • 85

    Slight Chance Thunderstorms

Today 25 Aug Union

Partly sunny this Morning, then clearing. Highs in the upper 80s. Northeast Winds around 5 Mph.

Tonight 25 Aug Union

Mostly clear. Lows in the upper 60s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Union Temperature Statistics

August Temperature

Spartanburg Memorial (23 miles)

  • Lowest 1 August, 2026

    68 °F

  • Average August

    78.2 °F

  • Highest 15 August, 2026

    95 °F

Climate (2021–2026)

Spartanburg Memorial (23 miles)

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  • Average Low 2021–2026

    51.2 °F

  • Average 2021–2026

    61.1 °F

  • Average High 2021–2026

    72 °F
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