As of 3:12 PM EST on December 9, 2025, all 3 cities in Knox County, KY in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Barbourville, KY with a reading of 0.9.
Over the next 24 hours, the highest UV Index reading in Knox County, KY is expected to be 2 in Barbourville between 12:00 PM - 1:00 PM EST tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |