As of 5:10 PM EDT on September 17, 2025, all 6 cities in Grayson County, VA in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Troutdale, VA with a reading of 1.8.
Over the next 24 hours, the highest UV Index reading in Grayson County, VA is expected to be 7.5 in Baywood 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 |