As of 11:55 AM MDT on August 18, 2026, out of 204 cities in Wyoming in our database, 142 cities (70%) have a UV Index reading of High, 60 cities (29%) have a UV Index reading of Moderate, while 2 cities (1%) have a UV Index reading of Very High. The city with the highest UV Index reading right now is Woods Landing-Jelm, WY with a reading of 7.5.
Over the next 24 hours, the highest UV Index reading in Wyoming is expected to be 10.2 in Arlington 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 |