As of 3:39 PM EST on January 20, 2026, all 2 cities in Grant County, WV in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Bayard, WV with a reading of 0.8.
Over the next 24 hours, the highest UV Index reading in Grant County, WV is expected to be 2.1 in Petersburg 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 |