As of 4:21 PM EDT on October 5, 2026, all 10 cities in Clay County, FL in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Keystone Heights, FL with a reading of 1.5.
Over the next 24 hours, the highest UV Index reading in Clay County, FL is expected to be 2.3 in Middleburg between 11:00 AM - 12:00 PM EDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |