Union Weather Forecast

    • 61
    • 78

    Rain Showers Likely

    • 58
    • 76

    Rain Likely

    • 60
    • 79

    Chance Rain

    • 62
    • 81

    Chance Rain

    • 61
    • 82

    Chance Rain

    • 44
    • 71

    Chance Rain

Today 7 Mar Union

Partly sunny. Patchy fog this morning. A slight chance of Showers and Thunderstorms this afternoon. Highs in the upper 70s. South Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 7 Mar Union

Mostly cloudy with a chance of Thunderstorms. A chance of Showers in the Evening, then Showers likely after midnight. Lows in the lower 60s. Southwest Winds around 5 Mph. Chance of rain 60 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Union Temperature Statistics

March Temperature

Spartanburg Memorial (23 miles)

  • Lowest 1 March, 2026

    41 °F

  • Average March

    54.2 °F

  • Highest 1 March, 2026

    77 °F

Climate (2021–Present)

Spartanburg Memorial (23 miles)

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  • Average Low 2021–2026

    51.1 °F

  • Average 2021–2026

    60.8 °F

  • Average High 2021–2026

    71.7 °F
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