As of 11:20 AM EDT on August 14, 2026, out of 11 cities in Johnston County, NC in our database, 9 cities (82%) have a UV Index reading of High, while 2 cities (18%) have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Archer Lodge, NC with a reading of 5.8.
Over the next 24 hours, the highest UV Index reading in Johnston County, NC is expected to be 8.6 in Smithfield between 1:00 PM - 2:00 PM EDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |