Posted in Web 10-Day Weather Forecast for Simpsonville, SC – The Weather Channel August 13, 2025 Be prepared with the most accurate 10-day forecast for Simpsonville, SC with highs, lows, chance of precipitation from The Weather Channel and Weather.com https://weather.com/weather/tenday/l/Simpsonville+SC?canonicalCityId=21ac29354ac1e730b367158f9fca56f1