As of 4:40 PM CDT on August 21, 2026, all 18 cities in Washington County, AR in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Fayetteville, AR with a reading of 5.3.
Over the next 24 hours, the highest UV Index reading in Washington County, AR is expected to be 9.5 in Springdale between 1:00 PM - 2:00 PM CDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |