As of 3:08 PM MDT on May 20, 2026, out of 14 cities in Fremont County, WY in our database, 10 cities (71%) have a UV Index reading of High, while 4 cities (29%) have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Pavillion, WY with a reading of 6.2.
Over the next 24 hours, the highest UV Index reading in Fremont County, WY is expected to be 6.2 in Pavillion between 3:00 PM - 4:00 PM MDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |