As of 6:41 PM MDT on October 10, 2026, all 2 cities in Johnson County, WY in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Buffalo, WY with a reading of 0.1.
Over the next 24 hours, the highest UV Index reading in Johnson County, WY is expected to be 1.5 in Kaycee between 4:00 PM - 5:00 PM MDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |