As of 2:46 PM MDT on September 6, 2026, out of 204 cities in Wyoming in our database, 141 cities (69%) have a UV Index reading of Very High, 60 cities (29%) have a UV Index reading of High, while 3 cities (1%) have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Centennial, WY with a reading of 9.1.
Over the next 24 hours, the highest UV Index reading in Wyoming is expected to be 9.1 in Centennial between 1:00 PM - 2:00 PM MDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |