As of 1:37 PM EDT on September 18, 2025, all 7 cities in McCormick County, SC in our database have a UV Index reading of High. The city with the highest UV Index reading right now is Mount Carmel, SC with a reading of 7.1.
Over the next 24 hours, the highest UV Index reading in McCormick County, SC is expected to be 7.1 in Mount Carmel between 2:00 PM - 3:00 PM EDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |