Lake Hartwell State Park Weather Forecast

    • 49
    • 64

    Rain Showers

    • 49
    • 55

    Rain Showers

    • 47
    • 56

    Chance Rain Showers

    • 44
    • 56

    Rain Showers Likely

    • 41
    • 59

    Slight Chance Rain Showers

    • 40
    • 62

    Mostly Sunny

Today 26 Oct Greater Oconee

Partly sunny. A chance of Showers in the afternoon. Highs in the mid 60s. Northeast Winds 5 to 10 Mph. Chance of rain 30 percent.

Tonight 26 Oct Greater Oconee

Cloudy. A chance of Showers in the Evening, then Showers likely after midnight. Lows in the upper 40s. Northeast Winds 5 to 10 Mph. Gusts up to 25 Mph after midnight. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Hartwell State Park Temperature Statistics

October Temperature

Clemson, Clemson-Oconee County Airport (14.9 miles)

  • Lowest 20 October, 2025

    43 °F

  • Average October

    64.8 °F

  • Highest 1 October, 2025

    81 °F

Climate (2020–Present)

Clemson, Clemson-Oconee County Airport (14.9 miles)

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  • Average Low 2020–2025

    53.6 °F

  • Average 2020–2025

    62.6 °F

  • Average High 2020–2025

    72.2 °F
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