As of 4:19 PM EDT on June 26, 2025, out of 10 cities in Mercer County, WV in our database, 7 cities (70%) have a UV Index reading of High, 2 cities (20%) have a UV Index reading of Moderate, while 1 city (10%) have a UV Index reading of Low. The city with the highest UV Index reading right now is Bluefield, WV with a reading of 6.5.
Over the next 24 hours, the highest UV Index reading in Mercer County, WV is expected to be 10.5 in Bluefield between 1:00 PM - 2:00 PM EDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |