As of 2:05 PM MDT on August 30, 2025, all 7 cities in Sublette County, WY in our database have a UV Index reading of Very High. The city with the highest UV Index reading right now is Marbleton, WY with a reading of 7.9.
Over the next 24 hours, the highest UV Index reading in Sublette County, WY is expected to be 7.9 in Marbleton 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 |