As of 12:04 PM CDT on May 11, 2026, out of 106 cities in Starr County, TX in our database, 91 cities (86%) have a UV Index reading of Very High, while 15 cities (14%) have a UV Index reading of High. The city with the highest UV Index reading right now is Nina, TX with a reading of 8.7.
Over the next 24 hours, the highest UV Index reading in Starr County, TX is expected to be 10.4 in Roma between 1:00 PM - 2:00 PM CDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |