As of 8:22 PM EDT on July 18, 2025, all 1 cities in Calhoun County, WV in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Grantsville, WV with a reading of 0.1.
Over the next 24 hours, the highest UV Index reading in Calhoun County, WV is expected to be 5.8 in Grantsville between 3:00 PM - 4:00 PM EDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |