As of 4:50 PM MDT on September 15, 2025, out of 204 cities in Wyoming in our database, 147 cities (72%) have a UV Index reading of Moderate, while 57 cities (28%) have a UV Index reading of Low. The city with the highest UV Index reading right now is Evanston, WY with a reading of 3.8.
Over the next 24 hours, the highest UV Index reading in Wyoming is expected to be 6.7 in Fort Bridger 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 |