As of 12:55 PM CST on January 20, 2026, all 4 cities in Smith County, TN in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Carthage, TN with a reading of 2.2.
Over the next 24 hours, the highest UV Index reading in Smith County, TN is expected to be 2.4 in Carthage between 11:00 AM - 12:00 PM CST tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |