Fountain Inn Weather Forecast

    • 65
    • 84

    Rain Showers Likely

    • 58
    • 69

    Rain Showers Likely

    • 55
    • 65

    Slight Chance Rain Showers

    • 54
    • 75

    Mostly Sunny

    • 53
    • 77

    Mostly Sunny

    • 54
    • 77

    Partly Sunny

Today 22 Sep Southern Greenville

Partly sunny with a chance of Showers and Thunderstorms. Near steady Temperatures in the lower 80s. Northeast Winds around 5 Mph. Chance of rain 50 percent.

Tonight 22 Sep Southern Greenville

Mostly cloudy. Showers likely with a chance of Thunderstorms in the Evening, then a chance of Showers after midnight. Lows in the mid 60s. Northeast Winds 5 to 10 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fountain Inn Temperature Statistics

September Temperature

Greenville-Donaldson Center Airport (11.2 miles)

  • Lowest 8 September, 2026

    68 °F

  • Average September

    77.8 °F

  • Highest 3 September, 2026

    96.8 °F

Climate (2021–2026)

Greenville-Donaldson Center Airport (11.2 miles)

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  • Average Low 2021–2026

    53.6 °F

  • Average 2021–2026

    61.4 °F

  • Average High 2021–2026

    72.3 °F
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