Lake Hartwell State Park Weather Forecast

    • 60
    • 80

    Chance Rain Showers

    • 61
    • 77

    Chance Thunderstorms

    • 62
    • 78

    Rain Showers Likely

    • 59
    • 86

    Chance Thunderstorms

    • 55
    • 76

    Partly Sunny

    • 57
    • 77

    Partly Sunny

    • 62
    • 83

    Partly Sunny

Today 23 Apr Greater Oconee

Mostly sunny with scattered Showers and Thunderstorms. Highs in the upper 70s. East Winds around 5 Mph. Chance of rain 40 percent.

Tonight 23 Apr Greater Oconee

Partly cloudy this Evening, then becoming mostly cloudy. A slight chance of Thunderstorms this evening. A chance of Showers. Patchy fog after midnight. Lows around 60. Northeast Winds around 5 Mph. Chance of rain 50 percent.

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Lake Hartwell State Park Temperature Statistics

April Temperature

Clemson, Clemson-Oconee County Airport (14.9 miles)

  • Lowest 13 April, 2025

    37.7 °F

  • Average April

    63.8 °F

  • Highest 14 April, 2025

    86.6 °F

Climate (2020–Present)

Clemson, Clemson-Oconee County Airport (14.9 miles)

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  • Average Low 2020–2025

    53.5 °F

  • Average 2020–2025

    62.3 °F

  • Average High 2020–2025

    72 °F
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