As of 4:30 PM EDT on May 15, 2025, out of 15 cities in Union County, NC in our database, 13 cities (87%) have a UV Index reading of Moderate, 1 city (7%) have a UV Index reading of Low, while 1 city (7%) have a UV Index reading of High. The city with the highest UV Index reading right now is Marshville, NC with a reading of 5.6.
Over the next 24 hours, the highest UV Index reading in Union County, NC is expected to be 7.4 in JAARS between 12:00 PM - 1:00 PM EDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |