As of 2:06 PM MDT on June 23, 2026, out of 19 cities in Box Elder County, UT in our database, 12 cities (63%) have a UV Index reading of Very High, while 7 cities (37%) have a UV Index reading of High. The city with the highest UV Index reading right now is Snowville, UT with a reading of 9.9.
Over the next 24 hours, the highest UV Index reading in Box Elder County, UT is expected to be 9.9 in Snowville between 2:00 PM - 3:00 PM MDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |