As of 10:02 AM MST on June 21, 2026, all 48 cities in Navajo County, AZ in our database have a UV Index reading of Very High. The city with the highest UV Index reading right now is Show Low, AZ with a reading of 8.8.
Over the next 24 hours, the highest UV Index reading in Navajo County, AZ is expected to be 12.6 in Whiteriver between 12:00 PM - 1:00 PM MST today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |