As of 5:18 PM EDT on June 24, 2026, all 10 cities in St. Lucie County, FL in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Port St. Lucie, FL with a reading of 3.7.
Over the next 24 hours, the highest UV Index reading in St. Lucie County, FL is expected to be 11.4 in Port St. Lucie 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 |