As of 5:40 PM MDT on July 18, 2025, all 9 cities in Teton County, WY in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Wilson, WY with a reading of 4.1.
Over the next 24 hours, the highest UV Index reading in Teton County, WY is expected to be 10.3 in Alta 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 |