As of 4:57 PM MDT on July 18, 2025, out of 19 cities in Washington County, UT in our database, 14 cities (74%) have a UV Index reading of High, while 5 cities (26%) have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Springdale, UT with a reading of 7.4.
Over the next 24 hours, the highest UV Index reading in Washington County, UT is expected to be 11.1 in Hildale between 2:00 PM - 3:00 PM MDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |