As of 2:04 PM EDT on September 17, 2025, out of 7 cities in Polk County, TN in our database, 5 cities (71%) have a UV Index reading of High, while 2 cities (29%) have a UV Index reading of Very High. The city with the highest UV Index reading right now is Copperhill, TN with a reading of 7.6.
Over the next 24 hours, the highest UV Index reading in Polk County, TN is expected to be 7.6 in Copperhill 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 |