As of 12:01 PM MDT on June 28, 2025, out of 19 cities in Sweetwater County, WY in our database, 18 cities (95%) have a UV Index reading of Very High, while 1 city (5%) have a UV Index reading of High. The city with the highest UV Index reading right now is North Rock Springs, WY with a reading of 9.6.
Over the next 24 hours, the highest UV Index reading in Sweetwater County, WY is expected to be 10.7 in North Rock Springs between 1:00 PM - 2:00 PM MDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |