As of 12:12 PM MDT on March 19, 2026, all 12 cities in Sevier County, UT in our database have a UV Index reading of High. The city with the highest UV Index reading right now is Monroe, UT with a reading of 6.6.
Over the next 24 hours, the highest UV Index reading in Sevier County, UT is expected to be 7.8 in Monroe between 1:00 PM - 2:00 PM MDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |