Lake Hartwell State Park Weather Forecast
- 74
- 93
Chance Thunderstorms
- 74
- 94
Chance Thunderstorms
- 74
- 95
Chance Thunderstorms
- 75
- 96
Slight Chance Thunderstorms
- 74
- 95
Chance Thunderstorms
- 73
- 92
Chance Thunderstorms
Today 17 Jul Greater Oconee
Mostly sunny. A chance of Showers and Thunderstorms in the afternoon. Humid with Highs in the lower 90s. Southwest Winds around 5 Mph. Chance of rain 40 percent. Heat index Values up to 103 in the afternoon.
Tonight 17 Jul Greater Oconee
Partly cloudy with scattered Showers with isolated Thunderstorms. Lows in the lower 70s. Light and variable Winds. Chance of rain 40 percent.
Lake Hartwell State Park Temperature Statistics
July Temperature
Clemson, Clemson-Oconee County Airport (14.9 miles)
Lowest 6 July, 2025
70.6 °FAverage July
81.7 °FHighest 7 July, 2025
96.7 °F
Climate (2020–Present)
Clemson, Clemson-Oconee County Airport (14.9 miles)
Average Low 2020–2025
53.6 °FAverage 2020–2025
62.5 °FAverage High 2020–2025
72.2 °F