As of 1:51 PM EDT on September 18, 2026, out of 9 cities in Lancaster County, SC in our database, 7 cities (78%) have a UV Index reading of High, while 2 cities (22%) have a UV Index reading of Very High. The city with the highest UV Index reading right now is Heath Springs, SC with a reading of 7.7.
Over the next 24 hours, the highest UV Index reading in Lancaster County, SC is expected to be 7.7 in Heath Springs between 1:00 PM - 2:00 PM EDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |