As of 12:48 AM MST on January 18, 2026, all 12 cities in Sevier County, UT in our database have a UV Index reading of 0, indicating no radiation from the sun.
Over the next 24 hours, the highest UV Index reading in Sevier County, UT is expected to be 2.6 in Monroe between 12:00 PM - 1:00 PM MST today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |