As of 2:14 PM MDT on July 15, 2025, out of 11 cities in Big Horn County, WY in our database, 10 cities (91%) have a UV Index reading of Very High, while 1 city (9%) have a UV Index reading of High. The city with the highest UV Index reading right now is Cowley, WY with a reading of 9.
Over the next 24 hours, the highest UV Index reading in Big Horn County, WY is expected to be 9 in Cowley 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 |