Weather WorldBig Rock Lake, SC 7-Day Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Big Rock Lake Weather Forecast
Big Rock Lake, SC Weather Forecast Date: 409 PM EDT Sun Aug 09 2026
Weather forecast for Big Rock Lake, SC
Tonight Lo: 71°F Lo: 22°C |
Tonight... Mostly cloudy with a chance of showers and thunderstorms this evening, then partly cloudy after midnight. Lows in the lower 70s. Northwest winds around 5 mph this evening, becoming light and variable. Chance of rain 50%. |
Mon Hi: 91°FHi: 33°C Lo: 71°F Lo: 22°C |
Monday... Mostly sunny. A chance of showers and thunderstorms in the afternoon. Humid with highs in the lower 90s. West winds around 5 mph. Chance of rain 50%. Heat index values up to 101. |
Tue Hi: 91°FHi: 33°C Lo: 71°F Lo: 22°C |
Tuesday... Sunny with highs in the lower 90s. West winds around 5 mph. Heat index values up to 103. |
| Wed Hi: 91°FHi: 33°C Lo: 71°F Lo: 22°C |
Wednesday... Sunny. Highs in the lower 90s. Heat index values up to 100. |
| Thu Hi: 95°FHi: 35°C Lo: 71°F Lo: 22°C |
Thursday... Mostly sunny. Highs in the mid 90s. Heat index values up to 105. |
| Fri Hi: 91°FHi: 33°C Lo: 71°F Lo: 22°C |
Friday... Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 30%. Heat index values up to 105. |
| Sat Hi: 91°FHi: 33°C Lo: 71°F Lo: 22°C |
Saturday... Mostly sunny in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 40%. Heat index values up to 105 in the afternoon. |
Big Rock Lake Radar Loop
Use the map search tool if you want to place a location marker on the radar map...