As of 6:50 PM EDT on March 12, 2026, all 13 cities in Gwinnett County, GA in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Peachtree Corners, GA with a reading of 0.7.
Over the next 24 hours, the highest UV Index reading in Gwinnett County, GA is expected to be 6.4 in Mountain Park between 2:00 PM - 3:00 PM EDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |