Simpsonville Weather Forecast

    • 32
    • 54

    Mostly Sunny

    • 40
    • 60

    Slight Chance Rain

    • 17
    • 49

    Mostly Sunny

    • 22
    • 40

    Mostly Sunny

    • 31
    • 52

    Mostly Sunny

    • 40
    • 58

    Partly Sunny

Today 12 Dec Southern Greenville

Sunny. Highs in the mid 50s. South Winds 5 to 10 Mph.

Tonight 12 Dec Southern Greenville

Clear. Lows in the lower 30s. Northwest Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Simpsonville Temperature Statistics

December Temperature

Greenville-Donaldson Center Airport (6.8 miles)

  • Lowest 4 December, 2025

    30.2 °F

  • Average December

    39.7 °F

  • Highest 10 December, 2025

    53.6 °F

Climate (2020–Present)

Greenville-Donaldson Center Airport (6.8 miles)

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  • Average Low 2020–2025

    53.2 °F

  • Average 2020–2025

    61 °F

  • Average High 2020–2025

    71.8 °F
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