Hartness Airport Weather Forecast

    • 70
    • 86

    Rain Showers

    • 70
    • 89

    Slight Chance Thunderstorms

    • 68
    • 91

    Mostly Sunny

    • 64
    • 85

    Mostly Sunny

    • 64
    • 86

    Mostly Sunny

    • 68
    • 89

    Mostly Sunny

Today 12 Sep Southern Greenville

Mostly cloudy. A chance of Showers in the Morning, then Showers likely with a chance of Thunderstorms in the afternoon. Humid with Highs in the mid 80s. Southwest Winds 5 to 10 Mph. Chance of rain 70 percent.

Tonight 12 Sep Southern Greenville

Mostly cloudy. Showers likely with a chance of Thunderstorms in the Evening, then a chance of Showers after midnight. Lows around 70. Southwest Winds around 5 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hartness Airport Temperature Statistics

September Temperature

Greer, Greenville-Spartanburg Airport (3.1 miles)

  • Lowest 9 September, 2026

    64 °F

  • Average September

    81.2 °F

  • Highest 3 September, 2026

    97.6 °F

Climate (2021–2026)

Greer, Greenville-Spartanburg Airport (3.1 miles)

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  • Average Low 2021–2026

    51.8 °F

  • Average 2021–2026

    62.3 °F

  • Average High 2021–2026

    73.4 °F
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