As of 2:12 PM EDT on July 21, 2026, all 4 cities in Allendale County, SC in our database have a UV Index reading of Extreme. The city with the highest UV Index reading right now is Allendale, SC with a reading of 10.8.
Over the next 24 hours, the highest UV Index reading in Allendale County, SC is expected to be 10.8 in Allendale 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 |