As of 2:21 PM EST on December 27, 2025, all 1 cities in Alleghany County, NC in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Sparta, NC with a reading of 1.8.
Over the next 24 hours, the highest UV Index reading in Alleghany County, NC is expected to be 1.8 in Sparta between 2:00 PM - 3:00 PM EST today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |