As of 2:33 PM MST on April 7, 2026, out of 43 cities in Maricopa County, AZ in our database, 31 cities (72%) have a UV Index reading of High, while 12 cities (28%) have a UV Index reading of Very High. The city with the highest UV Index reading right now is Aguila, AZ with a reading of 7.7.
Over the next 24 hours, the highest UV Index reading in Maricopa County, AZ is expected to be 9.3 in New River between 12:00 PM - 1:00 PM MST tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |