As of 2:33 PM EDT on July 18, 2025, out of 7 cities in Chester County, SC in our database, 6 cities (86%) have a UV Index reading of Very High, while 1 city (14%) have a UV Index reading of Extreme. The city with the highest UV Index reading right now is Great Falls, SC with a reading of 10.5.
Over the next 24 hours, the highest UV Index reading in Chester County, SC is expected to be 11 in Chester between 1:00 PM - 2:00 PM EDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |