Lake Hartwell State Park Weather Forecast

    • 71
    • 88

    Slight Chance Thunderstorms

    • 71
    • 89

    Chance Thunderstorms

    • 72
    • 91

    Slight Chance Thunderstorms

    • 73
    • 91

    Slight Chance Thunderstorms

    • 73
    • 91

    Slight Chance Thunderstorms

    • 74
    • 92

    Partly Sunny

    • 73
    • 92

    Slight Chance Thunderstorms

Today 7 Aug Greater Oconee

Partly sunny with a slight chance of Showers and Thunderstorms. Near steady Temperatures in the mid 80s. Southwest Winds around 5 Mph. Chance of rain 20 percent.

Tonight 7 Aug Greater Oconee

A slight chance of Thunderstorms this evening. Mostly cloudy with a slight chance of Showers. Lows around 70. Southwest Winds around 5 Mph this Evening, becoming light and variable. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

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Lake Hartwell State Park Temperature Statistics

August Temperature

Clemson, Clemson-Oconee County Airport (14.9 miles)

  • Lowest 1 August, 2026

    69.1 °F

  • Average August

    75.7 °F

  • Highest 3 August, 2026

    87.1 °F

Climate (2021–2026)

Clemson, Clemson-Oconee County Airport (14.9 miles)

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  • Average Low 2021–2026

    53.6 °F

  • Average 2021–2026

    62.8 °F

  • Average High 2021–2026

    72.4 °F
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