As of 9:58 AM CDT on August 19, 2026, out of 501 cities in Tennessee in our database, 424 cities (85%) have a UV Index reading of Moderate, while 77 cities (15%) have a UV Index reading of Low. The city with the highest UV Index reading right now is Mountain City, TN with a reading of 3.6.
Over the next 24 hours, the highest UV Index reading in Tennessee is expected to be 9.8 in Ducktown 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 |